backport of local changes
This commit is contained in:
Anselm R Garbe
parent
802f1922f9
commit
d58dd3b8bc
43
LICENSE
43
LICENSE
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@ -1,22 +1,25 @@
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MIT/X Consortium License
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Copyright (c) 2009, Aurélien APTEL <aurelien dot aptel at gmail dot com>
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Copyright (c) 2009, Anselm R Garbe <garbeam at gmail dot com>
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© 2007-2008 Anselm R Garbe <garbeam at gmail dot com>
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© 2008 Matthias Christian Ott <ott at enolink dot de>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
|
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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67
Makefile
67
Makefile
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@ -1,45 +1,50 @@
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# st - simple terminal
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# See LICENSE file for copyright and license details.
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VERSION = 0.0
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include config.mk
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PREFIX = /usr/local
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MANDIR = $(PREFIX)/share/man
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SRC = st.c
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OBJ = ${SRC:.c=.o}
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CFLAGS = -DVERSION=\"0.0\" -D_GNU_SOURCE
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all: options st
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all: st std
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options:
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@echo st build options:
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@echo "CFLAGS = ${CFLAGS}"
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@echo "LDFLAGS = ${LDFLAGS}"
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@echo "CC = ${CC}"
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.c.o:
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@echo CC $<
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@${CC} -c ${CFLAGS} $<
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${OBJ}: config.mk
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st: ${OBJ}
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@echo CC -o $@
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@${CC} -o $@ ${OBJ} ${LDFLAGS}
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clean:
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rm -f st std
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rm -f st.o std.o
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rm -f st-$(VERSION).tar.gz
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@echo cleaning
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@rm -f st ${OBJ} st-${VERSION}.tar.gz
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dist: clean
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mkdir st-$(VERSION)
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cp -f LICENSE README st-$(VERSION)
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cp -f Makefile config.mk st-$(VERSION)
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cp -f st.1 std.1 st-$(VERSION)
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cp -f st.c std.c st-$(VERSION)
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tar -czf st-$(VERSION).tar st-$(VERSION)
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rm -rf st-$(VERSION)
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@echo creating dist tarball
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@mkdir -p st-${VERSION}
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@cp -R LICENSE Makefile README config.mk st.h ${SRC} st-${VERSION}
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@tar -cf st-${VERSION}.tar st-${VERSION}
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@gzip st-${VERSION}.tar
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@rm -rf st-${VERSION}
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install:
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mkdir -p $(DESTDIR)$(PREFIX)/bin
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cp -f st $(DESTDIR)$(PREFIX)/bin
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cp -f std $(DESTDIR)$(PREFIX)/bin
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chmod 755 $(DESTDIR)$(PREFIX)/bin/st
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chmod 755 $(DESTDIR)$(PREFIX)/bin/std
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mkdir -p $(DESTDIR)$(MANDIR)/man1
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sed 's/VERSION/$(VERSION)/g' < st.1 > $(DESTDIR)$(MANDIR)/man1/st.1
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chmod 644 $(DESTDIR)$(MANDIR)/man1/st.1
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sed 's/VERSION/$(VERSION)/g' < std.1 > $(DESTDIR)$(MANDIR)/man1/std.1
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chmod 644 $(DESTDIR)$(MANDIR)/man1/std.1
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install: all
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@echo installing executable file to ${DESTDIR}${PREFIX}/bin
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@mkdir -p ${DESTDIR}${PREFIX}/bin
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@cp -f st ${DESTDIR}${PREFIX}/bin
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@chmod 755 ${DESTDIR}${PREFIX}/bin/st
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@tic st.info
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uninstall:
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rm -f $(DESTDIR)$(PREFIX)/bin/st
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rm -f $(DESTDIR)$(PREFIX)/bin/std
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rm -f $(DESTDIR)$(MANDIR)/man1/st.1
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rm -f $(DESTDIR)$(MANDIR)/man1/std.1
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@echo removing executable file from ${DESTDIR}${PREFIX}/bin
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@rm -f ${DESTDIR}${PREFIX}/bin/st
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.PHONY: all clean dist install uninstall
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.PHONY: all options clean dist install uninstall
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28
README
Normal file
28
README
Normal file
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@ -0,0 +1,28 @@
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st - simple terminal
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--------------------
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st is a simple virtual terminal emulator for X which sucks less.
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Requirements
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------------
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In order to build st you need the Xlib header files.
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Installation
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------------
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Edit config.mk to match your local setup (st is installed into
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the /usr/local namespace by default).
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Afterwards enter the following command to build and install st (if
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necessary as root):
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make clean install
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Running st
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----------
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See the man page for details.
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Credits
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-------
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Based on Aurélien APTEL <aurelien dot aptel at gmail dot com> bt source code.
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9
TODO
Normal file
9
TODO
Normal file
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@ -0,0 +1,9 @@
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- write a clean terminfo entry
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- write global "setup" func
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- try to split more logic/gfx
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- optimize drawing
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- handle copy/paste
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- fix fork/child exit problem
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- fix resize (shrinking should move last line up)
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- handle utf8
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- refactor/clean code
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31
config.mk
Normal file
31
config.mk
Normal file
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@ -0,0 +1,31 @@
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# st version
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VERSION = 0.0
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# Customize below to fit your system
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# paths
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PREFIX = /usr/local
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MANPREFIX = ${PREFIX}/share/man
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X11INC = /usr/X11R6/include
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X11LIB = /usr/X11R6/lib
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# Xinerama, comment if you don't want it
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#XINERAMALIBS = -L${X11LIB} -lXinerama
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#XINERAMAFLAGS = -DXINERAMA
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# includes and libs
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INCS = -I. -I/usr/include -I${X11INC}
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LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 ${XINERAMALIBS}
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# flags
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CPPFLAGS = -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
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CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
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LDFLAGS = -s ${LIBS}
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# Solaris
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#CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
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#LDFLAGS = ${LIBS}
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# compiler and linker
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CC = cc
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928
st.c
928
st.c
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@ -1,17 +1,921 @@
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/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/* See LICENSE for licence details. */
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#include "st.h"
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/* Globals */
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DC dc;
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XWindow xw;
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Term term;
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Escseq escseq;
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int cmdfd;
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int running;
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void
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die(const char *errstr, ...) {
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va_list ap;
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va_start(ap, errstr);
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vfprintf(stderr, errstr, ap);
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va_end(ap);
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exit(EXIT_FAILURE);
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}
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void
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execsh(void) {
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char *args[3] = {SHELL, "-i", NULL};
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putenv("TERM=" TNAME);
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execvp(SHELL, args);
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}
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void
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xbell(void) { /* visual bell */
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XRectangle r = { 0, 0, xw.w, xw.h };
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XSetForeground(xw.dis, dc.gc, dc.col[BellCol]);
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XFillRectangles(xw.dis, xw.win, dc.gc, &r, 1);
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XFlush(xw.dis);
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usleep(30000);
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draw(SCredraw);
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}
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void
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ttynew(void) {
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int m, s;
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pid_t pid;
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char *pts;
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if((m = posix_openpt(O_RDWR | O_NOCTTY)) < 0)
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die("openpt");
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if(grantpt(m) == -1)
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die("grandpt");
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if(unlockpt(m) == -1)
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die("unlockpt");
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if((pts = ptsname(m)) == NULL)
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die("ptsname");
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if((s = open(pts, O_RDWR | O_NOCTTY)) < 0)
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die("slave open");
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fcntl(s, F_SETFL, O_NDELAY);
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switch(pid = fork()) {
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case -1:
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die("fork");
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break;
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case 0:
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setsid(); /* create a new process group */
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dup2(s, STDIN_FILENO);
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dup2(s, STDOUT_FILENO);
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dup2(s, STDERR_FILENO);
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if(ioctl(s, TIOCSCTTY, NULL) < 0)
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die("slave TTIOCSTTY");
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execsh();
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break;
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default:
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close(s);
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cmdfd = m;
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}
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}
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void
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dump(char c) {
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static int col;
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fprintf(stderr, " %02x %c ", c, isprint(c)?c:'.');
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if(++col % 10 == 0)
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fprintf(stderr, "\n");
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}
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void
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ttyread(void) {
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char buf[BUFSIZ] = {0};
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int ret;
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switch(ret = read(cmdfd, buf, BUFSIZ)) {
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case -1: /* error or exit */
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/* XXX: be more precise */
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running = 0;
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break;
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default:
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tputs(buf, ret);
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}
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}
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void
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ttywrite(char *s, size_t n) {
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if(write(cmdfd, s, n) == -1)
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die("write error on tty.");
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}
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void
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ttyresize(int x, int y) {
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struct winsize w;
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w.ws_row = term.row;
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w.ws_col = term.col;
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w.ws_xpixel = w.ws_ypixel = 0;
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if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
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fprintf(stderr, "Couldn't set window size: %m\n");
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}
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int
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escfinal(char c) {
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if(escseq.len == 1)
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switch(c) {
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case '[':
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case ']':
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case '(':
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return 0;
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case '=':
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case '>':
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default:
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return 1;
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}
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else if(BETWEEN(c, 0x40, 0x7E))
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return 1;
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return 0;
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}
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void
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tcpos(int mode) {
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static int x = 0;
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static int y = 0;
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if(mode == CSsave)
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x = term.c.x, y = term.c.y;
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else if(mode == CSload)
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tmoveto(x, y);
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}
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void
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tnew(int col, int row) { /* screen size */
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term.row = row, term.col = col;
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term.top = 0, term.bot = term.row - 1;
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/* mode */
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term.mode = TMwrap;
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/* cursor */
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term.c.attr.mode = ATnone;
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term.c.attr.fg = DefaultFG;
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term.c.attr.bg = DefaultBG;
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term.c.x = term.c.y = 0;
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term.c.hidden = 0;
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/* allocate screen */
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term.line = calloc(term.row, sizeof(Line));
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for(row = 0 ; row < term.row; row++)
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term.line[row] = calloc(term.col, sizeof(Glyph));
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}
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void
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tscroll(void) {
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Line temp = term.line[term.top];
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int i;
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for(i = term.top; i < term.bot; i++)
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term.line[i] = term.line[i+1];
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memset(temp, 0, sizeof(Glyph) * term.col);
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term.line[term.bot] = temp;
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xscroll();
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}
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void
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tnewline(void) {
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int y = term.c.y + 1;
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if(y > term.bot) {
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tscroll(), y = term.bot;
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}
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tmoveto(0, y);
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}
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int
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escaddc(char c) {
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escseq.buf[escseq.len++] = c;
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if(escfinal(c) || escseq.len >= ESCSIZ) {
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escparse(), eschandle();
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return 0;
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}
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return 1;
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}
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void
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escparse(void) {
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/* int noarg = 1; */
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char *p = escseq.buf;
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escseq.narg = 0;
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switch(escseq.pre = *p++) {
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case '[': /* CSI */
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if(*p == '?')
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escseq.priv = 1, p++;
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while(p < escseq.buf+escseq.len) {
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while(isdigit(*p)) {
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escseq.arg[escseq.narg] *= 10;
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escseq.arg[escseq.narg] += *(p++) - '0'/*, noarg = 0 */;
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}
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if(*p == ';')
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escseq.narg++, p++;
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else {
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escseq.mode = *p;
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escseq.narg++;
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return;
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}
|
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}
|
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break;
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case '(':
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/* humf charset stuff */
|
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break;
|
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}
|
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}
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|
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void
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tmoveto(int x, int y) {
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term.c.x = x < 0 ? 0 : x >= term.col ? term.col-1 : x;
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term.c.y = y < 0 ? 0 : y >= term.row ? term.row-1 : y;
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}
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void
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tcursor(int dir) {
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int xi = term.c.x, yi = term.c.y;
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int xf = xi, yf = yi;
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|
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switch(dir) {
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case CSup:
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yf--;
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break;
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case CSdown:
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yf++;
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break;
|
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case CSleft:
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xf--;
|
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if(xf < 0) {
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xf = term.col-1, yf--;
|
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if(yf < term.top)
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yf = term.top, xf = 0;
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}
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break;
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case CSright:
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xf++;
|
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if(xf >= term.col) {
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xf = 0, yf++;
|
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if(yf > term.bot)
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yf = term.bot, tscroll();
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}
|
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break;
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}
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tmoveto(xf, yf);
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}
|
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|
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void
|
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tsetchar(char c) {
|
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term.line[term.c.y][term.c.x] = term.c.attr;
|
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term.line[term.c.y][term.c.x].c = c;
|
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term.line[term.c.y][term.c.x].state |= CRset | CRupdate;
|
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}
|
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|
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void
|
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tclearregion(int x1, int y1, int x2, int y2) {
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int x, y;
|
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|
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LIMIT(x1, 0, term.col-1);
|
||||
LIMIT(x2, 0, term.col-1);
|
||||
LIMIT(y1, 0, term.row-1);
|
||||
LIMIT(y2, 0, term.row-1);
|
||||
|
||||
/* XXX: could be optimized */
|
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for(x = x1; x <= x2; x++)
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for(y = y1; y <= y2; y++)
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memset(&term.line[y][x], 0, sizeof(Glyph));
|
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|
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xclear(x1, y1, x2, y2);
|
||||
}
|
||||
|
||||
void
|
||||
tdeletechar(int n) {
|
||||
int src = term.c.x + n;
|
||||
int dst = term.c.x;
|
||||
int size = term.col - src;
|
||||
|
||||
if(src >= term.col) {
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||||
return;
|
||||
}
|
||||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
|
||||
tclearregion(term.col-size, term.c.y, term.col-1, term.c.y);
|
||||
}
|
||||
|
||||
void
|
||||
tinsertblank(int n) {
|
||||
int src = term.c.x;
|
||||
int dst = src + n;
|
||||
int size = term.col - n - src;
|
||||
|
||||
if(dst >= term.col) {
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||||
return;
|
||||
}
|
||||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
|
||||
tclearregion(src, term.c.y, dst, term.c.y);
|
||||
}
|
||||
|
||||
void
|
||||
tinsertblankline (int n) {
|
||||
int i;
|
||||
Line blank;
|
||||
int bot = term.bot;
|
||||
|
||||
if(term.c.y > term.bot)
|
||||
bot = term.row - 1;
|
||||
else if(term.c.y < term.top)
|
||||
bot = term.top - 1;
|
||||
if(term.c.y + n >= bot) {
|
||||
tclearregion(0, term.c.y, term.col-1, bot);
|
||||
return;
|
||||
}
|
||||
for(i = bot; i >= term.c.y+n; i--) {
|
||||
/* swap deleted line <-> blanked line */
|
||||
blank = term.line[i];
|
||||
term.line[i] = term.line[i-n];
|
||||
term.line[i-n] = blank;
|
||||
/* blank it */
|
||||
memset(blank, 0, term.col * sizeof(Glyph));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
tdeleteline(int n) {
|
||||
int i;
|
||||
Line blank;
|
||||
int bot = term.bot;
|
||||
|
||||
if(term.c.y > term.bot)
|
||||
bot = term.row - 1;
|
||||
else if(term.c.y < term.top)
|
||||
bot = term.top - 1;
|
||||
if(term.c.y + n >= bot) {
|
||||
tclearregion(0, term.c.y, term.col-1, bot);
|
||||
return;
|
||||
}
|
||||
for(i = term.c.y; i <= bot-n; i++) {
|
||||
/* swap deleted line <-> blanked line */
|
||||
blank = term.line[i];
|
||||
term.line[i] = term.line[i+n];
|
||||
term.line[i+n] = blank;
|
||||
/* blank it */
|
||||
memset(blank, 0, term.col * sizeof(Glyph));
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tsetattr(int *attr, int l) {
|
||||
int i;
|
||||
|
||||
#ifdef TRUECOLOR /* ESC [ ? <fg/bg> ; <r> ; <g> ; <b> m */
|
||||
Color col;
|
||||
if(escseq.priv && escseq.len == 4) { /* True color extension :) */
|
||||
col = (escseq.arg[1]<<16) + (escseq.arg[2]<<8) + escseq.arg[3];
|
||||
switch(escseq.arg[0]) {
|
||||
case 3: /* foreground */
|
||||
term.c.attr.fg = col;
|
||||
break;
|
||||
case 4: /* background */
|
||||
term.c.attr.bg = col;
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif
|
||||
for(i = 0; i < l; i++) {
|
||||
switch(attr[i]) {
|
||||
case 0:
|
||||
memset(&term.c.attr, 0, sizeof(term.c.attr));
|
||||
term.c.attr.fg = DefaultFG;
|
||||
term.c.attr.bg = DefaultBG;
|
||||
break;
|
||||
case 1:
|
||||
term.c.attr.mode |= ATbold;
|
||||
break;
|
||||
case 4:
|
||||
term.c.attr.mode |= ATunderline;
|
||||
break;
|
||||
case 7:
|
||||
term.c.attr.mode |= ATreverse;
|
||||
break;
|
||||
case 8:
|
||||
term.c.hidden = CShide;
|
||||
break;
|
||||
case 22:
|
||||
term.c.attr.mode &= ~ATbold;
|
||||
break;
|
||||
case 24:
|
||||
term.c.attr.mode &= ~ATunderline;
|
||||
break;
|
||||
case 27:
|
||||
term.c.attr.mode &= ~ATreverse;
|
||||
break;
|
||||
case 39:
|
||||
term.c.attr.fg = DefaultFG;
|
||||
break;
|
||||
case 49:
|
||||
term.c.attr.fg = DefaultBG;
|
||||
break;
|
||||
default:
|
||||
if(BETWEEN(attr[i], 30, 37))
|
||||
term.c.attr.fg = attr[i] - 30;
|
||||
else if(BETWEEN(attr[i], 40, 47))
|
||||
term.c.attr.bg = attr[i] - 40;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tsetscroll(int t, int b) {
|
||||
int temp;
|
||||
|
||||
LIMIT(t, 0, term.row-1);
|
||||
LIMIT(b, 0, term.row-1);
|
||||
if(t > b) {
|
||||
temp = t;
|
||||
t = b;
|
||||
b = temp;
|
||||
}
|
||||
term.top = t;
|
||||
term.bot = b;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
eschandle(void) {
|
||||
/* escdump(); */
|
||||
switch(escseq.pre) {
|
||||
case '[':
|
||||
switch(escseq.mode) {
|
||||
case '@': /* Insert <n> blank char */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tinsertblank(escseq.arg[0]);
|
||||
break;
|
||||
case 'A': /* Cursor <n> Up */
|
||||
case 'e':
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tmoveto(term.c.x, term.c.y-escseq.arg[0]);
|
||||
break;
|
||||
case 'B': /* Cursor <n> Down */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tmoveto(term.c.x, term.c.y+escseq.arg[0]);
|
||||
break;
|
||||
case 'C': /* Cursor <n> Forward */
|
||||
case 'a':
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tmoveto(term.c.x+escseq.arg[0], term.c.y);
|
||||
break;
|
||||
case 'D': /* Cursor <n> Backward */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tmoveto(term.c.x-escseq.arg[0], term.c.y);
|
||||
break;
|
||||
case 'E': /* Cursor <n> Down and first col */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tmoveto(0, term.c.y+escseq.arg[0]);
|
||||
break;
|
||||
case 'F': /* Cursor <n> Up and first col */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tmoveto(0, term.c.y-escseq.arg[0]);
|
||||
break;
|
||||
case 'G': /* Move to <col> */
|
||||
case '`':
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tmoveto(escseq.arg[0]-1, term.c.y);
|
||||
break;
|
||||
case 'H': /* Move to <row> <col> */
|
||||
case 'f':
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
DEFAULT(escseq.arg[1], 1);
|
||||
tmoveto(escseq.arg[1]-1, escseq.arg[0]-1);
|
||||
break;
|
||||
case 'J': /* Clear screen */
|
||||
switch(escseq.arg[0]) {
|
||||
case 0: /* below */
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.row-1);
|
||||
break;
|
||||
case 1: /* above */
|
||||
tclearregion(0, 0, term.c.x, term.c.y);
|
||||
break;
|
||||
case 2: /* all */
|
||||
tclearregion(0, 0, term.col-1, term.row-1);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case 'K': /* Clear line */
|
||||
switch(escseq.arg[0]) {
|
||||
case 0: /* right */
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||||
break;
|
||||
case 1: /* left */
|
||||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||||
break;
|
||||
case 2: /* all */
|
||||
tclearregion(0, term.c.y, term.col-1, term.c.y);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case 'L': /* Insert <n> blank lines */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tinsertblankline(escseq.arg[0]);
|
||||
break;
|
||||
case 'M': /* Delete <n> lines */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tdeleteline(escseq.arg[0]);
|
||||
break;
|
||||
case 'P': /* Delete <n> char */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tdeletechar(escseq.arg[0]);
|
||||
break;
|
||||
case 'd': /* Move to <row> */
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
tmoveto(term.c.x, escseq.arg[0]-1);
|
||||
break;
|
||||
case 'h': /* Set terminal mode */
|
||||
break;
|
||||
case 'm': /* Terminal attribute (color) */
|
||||
tsetattr(escseq.arg, escseq.narg);
|
||||
break;
|
||||
case 'r':
|
||||
if(escseq.priv)
|
||||
;
|
||||
else {
|
||||
DEFAULT(escseq.arg[0], 1);
|
||||
DEFAULT(escseq.arg[1], term.row);
|
||||
tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1);
|
||||
}
|
||||
break;
|
||||
case 's': /* Save cursor position */
|
||||
tcpos(CSsave);
|
||||
break;
|
||||
case 'u': /* Load cursor position */
|
||||
tcpos(CSload);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
escdump(void) {
|
||||
int i;
|
||||
puts("------");
|
||||
printf("rawbuf : %s\n", escseq.buf);
|
||||
printf("prechar : %c\n", escseq.pre);
|
||||
printf("private : %c\n", escseq.priv ? '?' : ' ');
|
||||
printf("narg : %d\n", escseq.narg);
|
||||
if(escseq.narg) {
|
||||
for(i = 0; i < escseq.narg; i++)
|
||||
printf("\targ %d = %d\n", i, escseq.arg[i]);
|
||||
}
|
||||
printf("mode : %c\n", escseq.mode);
|
||||
}
|
||||
|
||||
void
|
||||
escreset(void) {
|
||||
memset(&escseq, 0, sizeof(escseq));
|
||||
}
|
||||
|
||||
void
|
||||
tputc(char c) {
|
||||
static int inesc = 0;
|
||||
|
||||
dump(c);
|
||||
/* start of escseq */
|
||||
if(c == '\033')
|
||||
escreset(), inesc = 1;
|
||||
else if(inesc) {
|
||||
inesc = escaddc(c);
|
||||
} /* normal char */
|
||||
else switch(c) {
|
||||
default:
|
||||
tsetchar(c);
|
||||
tcursor(CSright);
|
||||
break;
|
||||
case '\b':
|
||||
tcursor(CSleft);
|
||||
break;
|
||||
case '\r':
|
||||
tmoveto(0, term.c.y);
|
||||
break;
|
||||
case '\n':
|
||||
tnewline();
|
||||
break;
|
||||
case '\a':
|
||||
xbell();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tputs(char *s, int len) {
|
||||
for(; len > 0; len--)
|
||||
tputc(*s++);
|
||||
}
|
||||
|
||||
void
|
||||
tdump(void) {
|
||||
int row, col;
|
||||
Glyph c;
|
||||
|
||||
for(row = 0; row < term.row; row++) {
|
||||
for(col = 0; col < term.col; col++) {
|
||||
if(col == term.c.x && row == term.c.y)
|
||||
putchar('#');
|
||||
else {
|
||||
c = term.line[row][col];
|
||||
putchar(c.state & CRset ? c.c : '.');
|
||||
}
|
||||
}
|
||||
putchar('\n');
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tresize(int col, int row) {
|
||||
int i;
|
||||
Line *line;
|
||||
int minrow = MIN(row, term.row);
|
||||
int mincol = MIN(col, term.col);
|
||||
|
||||
if(col < 1 || row < 1)
|
||||
return;
|
||||
line = calloc(row, sizeof(Line));
|
||||
for(i = 0 ; i < row; i++)
|
||||
line[i] = calloc(col, sizeof(Glyph));
|
||||
for(i = 0 ; i < minrow; i++) {
|
||||
memcpy(line[i], term.line[i], mincol * sizeof(Glyph));
|
||||
free(term.line[i]);
|
||||
}
|
||||
free(term.line);
|
||||
LIMIT(term.c.x, 0, col-1);
|
||||
LIMIT(term.c.y, 0, row-1);
|
||||
LIMIT(term.top, 0, row-1);
|
||||
LIMIT(term.bot, 0, row-1);
|
||||
// if(term.bot == term.row-1)
|
||||
term.bot = row-1;
|
||||
term.line = line;
|
||||
term.col = col, term.row = row;
|
||||
}
|
||||
|
||||
unsigned long
|
||||
xgetcol(const char *s) {
|
||||
XColor color;
|
||||
Colormap cmap = DefaultColormap(xw.dis, xw.scr);
|
||||
|
||||
if(!XAllocNamedColor(xw.dis, cmap, s, &color, &color)) {
|
||||
color.pixel = WhitePixel(xw.dis, xw.scr);
|
||||
fprintf(stderr, "Could not allocate color '%s'\n", s);
|
||||
}
|
||||
return color.pixel;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
xclear(int x1, int y1, int x2, int y2) {
|
||||
XClearArea(xw.dis, xw.win,
|
||||
x1 * xw.cw, y1 * xw.ch,
|
||||
(x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch,
|
||||
False);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
xscroll(void) {
|
||||
int srcy = (term.top+1) * xw.ch;
|
||||
int dsty = term.top * xw.ch;
|
||||
int height = (term.bot-term.top) * xw.ch;
|
||||
|
||||
xcursor(CShide);
|
||||
XCopyArea(xw.dis, xw.win, xw.win, dc.gc, 0, srcy, xw.w, height, 0, dsty);
|
||||
xclear(0, term.bot, term.col-1, term.bot);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
void
|
||||
xinit(void) {
|
||||
XGCValues values;
|
||||
unsigned long valuemask;
|
||||
XClassHint chint;
|
||||
XWMHints wmhint;
|
||||
XSizeHints shint;
|
||||
char *args[] = {NULL};
|
||||
int i;
|
||||
|
||||
xw.dis = XOpenDisplay(NULL);
|
||||
xw.scr = XDefaultScreen(xw.dis);
|
||||
/* font */
|
||||
dc.font = XLoadQueryFont(xw.dis, FONT);
|
||||
xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing;
|
||||
xw.ch = dc.font->ascent + dc.font->descent + LINESPACE;
|
||||
/* colors */
|
||||
for(i = 0; i < LEN(colorname); i++)
|
||||
dc.col[i] = xgetcol(colorname[i]);
|
||||
term.c.attr.fg = DefaultFG;
|
||||
term.c.attr.bg = DefaultBG;
|
||||
term.c.attr.mode = ATnone;
|
||||
/* windows */
|
||||
xw.h = term.row * xw.ch;
|
||||
xw.w = term.col * xw.cw;
|
||||
/* XXX: this BORDER is useless after the first resize, handle it in xdraws() */
|
||||
xw.win = XCreateSimpleWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0,
|
||||
xw.w, xw.h, BORDER,
|
||||
dc.col[DefaultBG],
|
||||
dc.col[DefaultBG]);
|
||||
/* gc */
|
||||
values.foreground = XWhitePixel(xw.dis, xw.scr);
|
||||
values.font = dc.font->fid;
|
||||
valuemask = GCForeground | GCFont;
|
||||
dc.gc = XCreateGC(xw.dis, xw.win, valuemask, &values);
|
||||
XMapWindow(xw.dis, xw.win);
|
||||
/* wm stuff */
|
||||
chint.res_name = TNAME, chint.res_class = TNAME;
|
||||
wmhint.input = 1, wmhint.flags = InputHint;
|
||||
shint.height_inc = xw.ch, shint.width_inc = xw.cw;
|
||||
shint.height = xw.h, shint.width = xw.w;
|
||||
shint.flags = PSize | PResizeInc;
|
||||
XSetWMProperties(xw.dis, xw.win, NULL, NULL, &args[0], 0, &shint, &wmhint, &chint);
|
||||
XStoreName(xw.dis, xw.win, TNAME);
|
||||
XSync(xw.dis, 0);
|
||||
}
|
||||
|
||||
void
|
||||
xdrawc(int x, int y, Glyph g) {
|
||||
XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
|
||||
unsigned long xfg, xbg;
|
||||
|
||||
/* reverse video */
|
||||
if(g.mode & ATreverse)
|
||||
xfg = dc.col[g.bg], xbg = dc.col[g.fg];
|
||||
else
|
||||
xfg = dc.col[g.fg], xbg = dc.col[g.bg];
|
||||
/* background */
|
||||
XSetForeground(xw.dis, dc.gc, xbg);
|
||||
XFillRectangles(xw.dis, xw.win, dc.gc, &r, 1);
|
||||
/* string */
|
||||
XSetForeground(xw.dis, dc.gc, xfg);
|
||||
XDrawString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &(g.c), 1);
|
||||
if(g.mode & ATbold) /* XXX: bold hack (draw again at x+1) */
|
||||
XDrawString(xw.dis, xw.win, dc.gc, r.x+1, r.y+dc.font->ascent, &(g.c), 1);
|
||||
/* underline */
|
||||
if(g.mode & ATunderline) {
|
||||
r.y += dc.font->ascent + 1;
|
||||
XDrawLine(xw.dis, xw.win, dc.gc, r.x, r.y, r.x+r.width-1, r.y);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
xcursor(int mode) {
|
||||
static int oldx = 0;
|
||||
static int oldy = 0;
|
||||
Glyph g = {' ', ATnone, DefaultBG, DefaultCS, 0};
|
||||
|
||||
if(term.line[term.c.y][term.c.x].state & CRset)
|
||||
g.c = term.line[term.c.y][term.c.x].c;
|
||||
/* remove the old cursor */
|
||||
if(term.line[oldy][oldx].state & CRset)
|
||||
xdrawc(oldx, oldy, term.line[oldy][oldx]);
|
||||
else xclear(oldx, oldy, oldx, oldy); /* XXX: maybe a bug */
|
||||
if(mode == CSdraw && !term.c.hidden) {
|
||||
xdrawc(term.c.x, term.c.y, g);
|
||||
oldx = term.c.x, oldy = term.c.y;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
draw(int redraw_all) {
|
||||
int x, y;
|
||||
int changed, set;
|
||||
|
||||
if(redraw_all)
|
||||
XClearWindow(xw.dis, xw.win);
|
||||
/* XXX: drawing could be optimised */
|
||||
for(y = 0; y < term.row; y++) {
|
||||
for(x = 0; x < term.col; x++) {
|
||||
changed = term.line[y][x].state & CRupdate;
|
||||
set = term.line[y][x].state & CRset;
|
||||
if((changed && set) || (redraw_all && set)) {
|
||||
term.line[y][x].state &= ~CRupdate;
|
||||
xdrawc(x, y, term.line[y][x]);
|
||||
}
|
||||
}
|
||||
}
|
||||
xcursor(CSdraw);
|
||||
}
|
||||
|
||||
void
|
||||
kpress(XKeyEvent *e) {
|
||||
KeySym ksym;
|
||||
char buf[32];
|
||||
int len;
|
||||
int meta;
|
||||
int shift;
|
||||
|
||||
meta = e->state & Mod4Mask;
|
||||
shift = e->state & ShiftMask;
|
||||
len = XLookupString(e, buf, sizeof(buf), &ksym, NULL);
|
||||
if(len > 0) {
|
||||
buf[sizeof(buf)-1] = '\0';
|
||||
if(meta && len == 1)
|
||||
ttywrite("\033", 1);
|
||||
ttywrite(buf, len);
|
||||
return;
|
||||
}
|
||||
switch(ksym) {
|
||||
#ifdef DEBUG1
|
||||
default:
|
||||
printf("errkey: %d\n", (int)ksym);
|
||||
break;
|
||||
#endif
|
||||
case XK_Up:
|
||||
case XK_Down:
|
||||
case XK_Left:
|
||||
case XK_Right:
|
||||
sprintf(buf, "\033[%c", "DACB"[ksym - XK_Left]);
|
||||
ttywrite(buf, 3);
|
||||
break;
|
||||
case XK_Delete: ttywrite(KEYDELETE, sizeof(KEYDELETE)-1); break;
|
||||
case XK_Home: ttywrite( KEYHOME, sizeof( KEYHOME)-1); break;
|
||||
case XK_End: ttywrite( KEYEND, sizeof( KEYEND)-1); break;
|
||||
case XK_Prior: ttywrite( KEYPREV, sizeof( KEYPREV)-1); break;
|
||||
case XK_Next: ttywrite( KEYNEXT, sizeof( KEYNEXT)-1); break;
|
||||
case XK_Insert:
|
||||
/* XXX: paste X clipboard */
|
||||
if(shift);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
resize(XEvent *e) {
|
||||
int col, row;
|
||||
col = e->xconfigure.width / xw.cw;
|
||||
row = e->xconfigure.height / xw.ch;
|
||||
|
||||
if(term.col != col && term.row != row) {
|
||||
tresize(col, row);
|
||||
ttyresize(col, row);
|
||||
xw.w = e->xconfigure.width;
|
||||
xw.h = e->xconfigure.height;
|
||||
draw(SCredraw);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
run(void) {
|
||||
int ret;
|
||||
XEvent ev;
|
||||
fd_set rfd;
|
||||
struct timeval tv = {0, 10000};
|
||||
|
||||
running = 1;
|
||||
XSelectInput(xw.dis, xw.win, ExposureMask | KeyPressMask | StructureNotifyMask);
|
||||
XResizeWindow(xw.dis, xw.win, xw.w , xw.h); /* seems to fix the resize bug in wmii */
|
||||
while(running) {
|
||||
while(XPending(xw.dis)) {
|
||||
XNextEvent(xw.dis, &ev);
|
||||
switch (ev.type) {
|
||||
default:
|
||||
break;
|
||||
case KeyPress:
|
||||
kpress(&ev.xkey);
|
||||
break;
|
||||
case Expose:
|
||||
draw(SCredraw);
|
||||
break;
|
||||
case ConfigureNotify:
|
||||
resize(&ev);
|
||||
break;
|
||||
}
|
||||
}
|
||||
FD_ZERO(&rfd);
|
||||
FD_SET(cmdfd, &rfd);
|
||||
ret = select(cmdfd+1, &rfd, NULL, NULL, &tv);
|
||||
if(ret < 0) {
|
||||
fprintf(stderr, "select: %m\n");
|
||||
running = 0;
|
||||
}
|
||||
if(!ret)
|
||||
continue;
|
||||
if(FD_ISSET(cmdfd, &rfd)) {
|
||||
ttyread();
|
||||
draw(SCupdate);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char *argv[]) {
|
||||
if(argc == 2 && !strcmp("-v", argv[1])) {
|
||||
fprintf(stderr, "st-"VERSION", © 2007-2008 st engineers, see LICENSE for details\n");
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
else if(argc != 1) {
|
||||
fprintf(stderr, "usage: st [-v]\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
if(argc == 2 && !strncmp("-v", argv[1], 3))
|
||||
die("st-"VERSION", © 2009 st engineers\n");
|
||||
else if(argc != 1)
|
||||
die("usage: st [-v]\n");
|
||||
setlocale(LC_CTYPE, "");
|
||||
tnew(80, 24);
|
||||
ttynew();
|
||||
xinit();
|
||||
run();
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
181
st.h
Normal file
181
st.h
Normal file
|
|
@ -0,0 +1,181 @@
|
|||
/* See LICENSE for licence details. */
|
||||
|
||||
#define _XOPEN_SOURCE
|
||||
#include <ctype.h>
|
||||
#include <fcntl.h>
|
||||
#include <locale.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/select.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <X11/Xlib.h>
|
||||
#include <X11/keysym.h>
|
||||
#include <X11/Xutil.h>
|
||||
|
||||
/* special keys */
|
||||
#define KEYDELETE "\033[3~"
|
||||
#define KEYHOME "\033[1~"
|
||||
#define KEYEND "\033[4~"
|
||||
#define KEYPREV "\033[5~"
|
||||
#define KEYNEXT "\033[6~"
|
||||
|
||||
#define TNAME "st"
|
||||
#define SHELL "/bin/bash"
|
||||
#define TAB 8
|
||||
|
||||
#define FONT "-*-terminus-medium-r-normal-*-14-*-*-*-*-*-*-*"
|
||||
#define BORDER 3
|
||||
#define LINESPACE 1 /* additional pixel between each line */
|
||||
|
||||
/* Default colors */
|
||||
#define DefaultFG 7
|
||||
#define DefaultBG 0
|
||||
#define DefaultCS 1
|
||||
#define BellCol DefaultFG /* visual bell color */
|
||||
|
||||
static char* colorname[] = {
|
||||
"black",
|
||||
"red",
|
||||
"green",
|
||||
"yellow",
|
||||
"blue",
|
||||
"magenta",
|
||||
"cyan",
|
||||
"white",
|
||||
};
|
||||
|
||||
|
||||
/* Arbitrary sizes */
|
||||
#define ESCSIZ 256
|
||||
#define ESCARG 16
|
||||
|
||||
#define MIN(a, b) ((a) < (b) ? (a) : (b))
|
||||
#define MAX(a, b) ((a) < (b) ? (b) : (a))
|
||||
#define LEN(a) (sizeof(a) / sizeof(a[0]))
|
||||
#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
|
||||
#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
|
||||
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
|
||||
|
||||
|
||||
enum { ATnone=0 , ATreverse=1 , ATunderline=2, ATbold=4 }; /* Attribute */
|
||||
enum { CSup, CSdown, CSright, CSleft, CShide, CSdraw, CSwrap, CSsave, CSload }; /* Cursor */
|
||||
enum { CRset=1 , CRupdate=2 }; /* Character state */
|
||||
enum { TMwrap=1 , TMinsert=2 }; /* Terminal mode */
|
||||
enum { SCupdate, SCredraw }; /* screen draw mode */
|
||||
|
||||
#ifdef TRUECOLOR
|
||||
#error Truecolor not implemented yet
|
||||
typedef int Color;
|
||||
#else
|
||||
typedef char Color;
|
||||
#endif
|
||||
|
||||
|
||||
typedef struct {
|
||||
char c; /* character code */
|
||||
char mode; /* attribute flags */
|
||||
Color fg; /* foreground */
|
||||
Color bg; /* background */
|
||||
char state; /* state flag */
|
||||
} Glyph;
|
||||
|
||||
typedef Glyph* Line;
|
||||
|
||||
typedef struct {
|
||||
Glyph attr; /* current char attributes */
|
||||
char hidden;
|
||||
int x;
|
||||
int y;
|
||||
} TCursor;
|
||||
|
||||
/* Escape sequence structs */
|
||||
typedef struct {
|
||||
char buf[ESCSIZ+1]; /* raw string */
|
||||
int len; /* raw string length */
|
||||
/* ESC <pre> [[ [<priv>] <arg> [;]] <mode>] */
|
||||
char pre;
|
||||
char priv;
|
||||
int arg[ESCARG+1];
|
||||
int narg; /* nb of args */
|
||||
char mode;
|
||||
} Escseq;
|
||||
|
||||
/* Internal representation of the screen */
|
||||
typedef struct {
|
||||
int row; /* nb row */
|
||||
int col; /* nb col */
|
||||
Line* line; /* screen */
|
||||
TCursor c; /* cursor */
|
||||
int top; /* top scroll limit */
|
||||
int bot; /* bottom scroll limit */
|
||||
int mode; /* terminal mode */
|
||||
} Term;
|
||||
|
||||
/* Purely graphic info */
|
||||
typedef struct {
|
||||
Display* dis;
|
||||
Window win;
|
||||
int scr;
|
||||
int w; /* window width */
|
||||
int h; /* window height */
|
||||
int ch; /* char height */
|
||||
int cw; /* char width */
|
||||
} XWindow;
|
||||
|
||||
/* Drawing Context */
|
||||
typedef struct {
|
||||
unsigned long col[LEN(colorname)];
|
||||
XFontStruct* font;
|
||||
GC gc;
|
||||
} DC;
|
||||
|
||||
|
||||
void die(const char *errstr, ...);
|
||||
void draw(int);
|
||||
void execsh(void);
|
||||
void kpress(XKeyEvent *);
|
||||
void resize(XEvent *);
|
||||
void run(void);
|
||||
|
||||
int escaddc(char);
|
||||
int escfinal(char);
|
||||
void escdump(void);
|
||||
void eschandle(void);
|
||||
void escparse(void);
|
||||
void escreset(void);
|
||||
|
||||
void tclearregion(int, int, int, int);
|
||||
void tcpos(int);
|
||||
void tcursor(int);
|
||||
void tdeletechar(int);
|
||||
void tdeleteline(int);
|
||||
void tdump(void);
|
||||
void tinsertblank(int);
|
||||
void tinsertblankline(int);
|
||||
void tmoveto(int, int);
|
||||
void tnew(int, int);
|
||||
void tnewline(void);
|
||||
void tputc(char);
|
||||
void tputs(char*, int);
|
||||
void tresize(int, int);
|
||||
void tscroll(void);
|
||||
void tsetattr(int*, int);
|
||||
void tsetchar(char);
|
||||
void tsetscroll(int, int);
|
||||
|
||||
void ttynew(void);
|
||||
void ttyread(void);
|
||||
void ttyresize(int, int);
|
||||
void ttywrite(char *, size_t);
|
||||
|
||||
unsigned long xgetcol(const char *);
|
||||
void xclear(int, int, int, int);
|
||||
void xcursor(int);
|
||||
void xdrawc(int, int, Glyph);
|
||||
void xinit(void);
|
||||
void xscroll(void);
|
||||
54
st.info
Normal file
54
st.info
Normal file
|
|
@ -0,0 +1,54 @@
|
|||
# Reconstructed via infocmp from file: /lib/terminfo/p/pcansi
|
||||
st| simpleterm,
|
||||
am,
|
||||
ul,
|
||||
mir,
|
||||
msgr,
|
||||
colors#8,
|
||||
cols#80,
|
||||
it#8,
|
||||
lines#24,
|
||||
ncv#3,
|
||||
pairs#64,
|
||||
acsc=*`#aof+g+j+k+l+m+n-o-p-q-r-s+t+u+v+w|x<y>z{{||}}-~,
|
||||
bel=^G,
|
||||
bold=\E[1m,
|
||||
cbt=\E[Z,
|
||||
clear=\E[H\E[2J,
|
||||
cr=^M,
|
||||
cub1=\E[D,
|
||||
cud1=\E[B,
|
||||
cuf1=\E[C,
|
||||
cup=\E[%i%p1%d;%p2%dH,
|
||||
cuu1=\E[A,
|
||||
dch1=\E[P,
|
||||
dl1=\E[M,
|
||||
ed=\E[J,
|
||||
el=\E[K,
|
||||
home=\E[H,
|
||||
ht=^I,
|
||||
hts=\EH,
|
||||
il1=\E[L,
|
||||
ind=^J,
|
||||
invis=\E[8m,
|
||||
kbs=^H,
|
||||
kcub1=\E[D,
|
||||
kcud1=\E[B,
|
||||
kcuf1=\E[C,
|
||||
kcuu1=\E[A,
|
||||
khome=\E[1~,
|
||||
knp=\E[6~,
|
||||
kpp=\E[5~,
|
||||
op=\E[37;40m,
|
||||
rev=\E[7m,
|
||||
rmacs=\E[10m,
|
||||
rmso=\E[m,
|
||||
rmul=\E[m,
|
||||
setab=\E[4%p1%dm,
|
||||
setaf=\E[3%p1%dm,
|
||||
# sgr=\E[0;10%?%p1%t;7%;%?%p2%t;4%;%?%p3%t;7%;%?%p4%t;5%;%?%p6%t;1%;%?%p7%t;8%;%?%p9%t;12%;m,
|
||||
sgr0=\E[0m,
|
||||
smacs=\E[12m,
|
||||
smso=\E[7m,
|
||||
smul=\E[4m,
|
||||
tbc=\E[2g,
|
||||
363
std.c
363
std.c
|
|
@ -1,363 +0,0 @@
|
|||
/* See LICENSE file for copyright and license details.
|
||||
*
|
||||
* Simple terminal daemon is a terminal emulator. It can be used in
|
||||
* combination with simple terminal to emulate a mostly VT100-compatible
|
||||
* terminal.
|
||||
*
|
||||
* In this process std works like a filter. It reads data from a
|
||||
* pseudo-terminal and parses the escape sequences and transforms them
|
||||
* into an ed(1)-like language. The resulting data is buffered and
|
||||
* written to stdout.
|
||||
* Parallely it reads data from stdin and parses and executes the
|
||||
* commands. The resulting data is written to the pseudo-terminal.
|
||||
*/
|
||||
#include <sys/types.h>
|
||||
#include <sys/wait.h>
|
||||
#include <ctype.h>
|
||||
#include <err.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#if !(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
|
||||
#include <pty.h>
|
||||
#endif
|
||||
#include <signal.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#define LENGTH(x) (sizeof(x) / sizeof((x)[0]))
|
||||
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
|
||||
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
|
||||
|
||||
typedef struct {
|
||||
unsigned char data[BUFSIZ];
|
||||
int s, e;
|
||||
int n;
|
||||
} RingBuffer;
|
||||
|
||||
static void buffer(char c);
|
||||
static void cmd(const char *cmdstr, ...);
|
||||
static void getpty(void);
|
||||
static void movea(int x, int y);
|
||||
static void mover(int x, int y);
|
||||
static void parsecmd(void);
|
||||
static void parseesc(void);
|
||||
static void scroll(int l);
|
||||
static void shell(void);
|
||||
static void sigchld(int n);
|
||||
static char unbuffer(void);
|
||||
|
||||
static int cols = 80, lines = 25;
|
||||
static int cx = 0, cy = 0;
|
||||
static int c;
|
||||
static int ptm, pts;
|
||||
static _Bool bold, digit, qmark;
|
||||
static pid_t pid;
|
||||
static RingBuffer buf;
|
||||
static FILE *fptm;
|
||||
|
||||
void
|
||||
buffer(char c) {
|
||||
if(buf.n < LENGTH(buf.data))
|
||||
buf.n++;
|
||||
else
|
||||
buf.s = (buf.s + 1) % LENGTH(buf.data);
|
||||
buf.data[buf.e++] = c;
|
||||
buf.e %= LENGTH(buf.data);
|
||||
}
|
||||
|
||||
void
|
||||
cmd(const char *cmdstr, ...) {
|
||||
va_list ap;
|
||||
|
||||
putchar('\n');
|
||||
putchar(':');
|
||||
va_start(ap, cmdstr);
|
||||
vfprintf(stdout, cmdstr, ap);
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
void
|
||||
movea(int x, int y) {
|
||||
x = MAX(x, cols);
|
||||
y = MAX(y, lines);
|
||||
cx = x;
|
||||
cy = y;
|
||||
cmd("seek(%d,%d)", x, y);
|
||||
}
|
||||
|
||||
void
|
||||
mover(int x, int y) {
|
||||
movea(cx + x, cy + y);
|
||||
}
|
||||
|
||||
void
|
||||
parsecmd(void) {
|
||||
}
|
||||
|
||||
void
|
||||
parseesc(void) {
|
||||
int i, j;
|
||||
int arg[16];
|
||||
|
||||
memset(arg, 0, LENGTH(arg));
|
||||
c = getc(fptm);
|
||||
switch(c) {
|
||||
case '[':
|
||||
c = getc(fptm);
|
||||
for(j = 0; j < LENGTH(arg);) {
|
||||
if(isdigit(c)) {
|
||||
digit = 1;
|
||||
arg[j] *= 10;
|
||||
arg[j] += c - '0';
|
||||
}
|
||||
else if(c == '?')
|
||||
qmark = 1;
|
||||
else if(c == ';') {
|
||||
if(!digit)
|
||||
errx(EXIT_FAILURE, "syntax error");
|
||||
digit = 0;
|
||||
j++;
|
||||
}
|
||||
else {
|
||||
if(digit) {
|
||||
digit = 0;
|
||||
j++;
|
||||
}
|
||||
break;
|
||||
}
|
||||
c = getc(fptm);
|
||||
}
|
||||
switch(c) {
|
||||
case '@':
|
||||
break;
|
||||
case 'A':
|
||||
mover(0, j ? arg[0] : 1);
|
||||
break;
|
||||
case 'B':
|
||||
mover(0, j ? -arg[0] : -1);
|
||||
break;
|
||||
case 'C':
|
||||
mover(j ? arg[0] : 1, 0);
|
||||
break;
|
||||
case 'D':
|
||||
mover(j ? -arg[0] : -1, 0);
|
||||
break;
|
||||
case 'E':
|
||||
/* movel(j ? arg[0] : 1); */
|
||||
break;
|
||||
case 'F':
|
||||
/* movel(j ? -arg[0] : -1); */
|
||||
break;
|
||||
case '`':
|
||||
case 'G':
|
||||
movea(j ? arg[0] : 1, cy);
|
||||
break;
|
||||
case 'f':
|
||||
case 'H':
|
||||
movea(arg[1] ? arg[1] : 1, arg[0] ? arg[0] : 1);
|
||||
case 'L':
|
||||
/* insline(j ? arg[0] : 1); */
|
||||
break;
|
||||
case 'M':
|
||||
/* delline(j ? arg[0] : 1); */
|
||||
break;
|
||||
case 'P':
|
||||
break;
|
||||
case 'S':
|
||||
scroll(j ? arg[0] : 1);
|
||||
break;
|
||||
case 'T':
|
||||
scroll(j ? -arg[0] : -1);
|
||||
break;
|
||||
case 'd':
|
||||
movea(cx, j ? arg[0] : 1);
|
||||
break;
|
||||
case 'm':
|
||||
for(i = 0; i < j; i++) {
|
||||
if(arg[i] >= 30 && arg[i] <= 37)
|
||||
cmd("#%d", arg[i] - 30);
|
||||
if(arg[i] >= 40 && arg[i] <= 47)
|
||||
cmd("|%d", arg[i] - 40);
|
||||
/* xterm bright colors */
|
||||
if(arg[i] >= 90 && arg[i] <= 97)
|
||||
cmd("#%d", arg[i] - 90);
|
||||
if(arg[i] >= 100 && arg[i] <= 107)
|
||||
cmd("|%d", arg[i] - 100);
|
||||
switch(arg[i]) {
|
||||
case 0:
|
||||
case 22:
|
||||
if(bold)
|
||||
cmd("bold");
|
||||
case 1:
|
||||
if(!bold)
|
||||
cmd("bold");
|
||||
break;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
putchar('\033');
|
||||
ungetc(c, fptm);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
scroll(int l) {
|
||||
cmd("seek(%d,%d)", cx, cy + l);
|
||||
}
|
||||
|
||||
void
|
||||
getpty(void) {
|
||||
char *ptsdev;
|
||||
|
||||
#if defined(_GNU_SOURCE)
|
||||
ptm = getpt();
|
||||
#elif _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
|
||||
ptm = posix_openpt(O_RDWR);
|
||||
#else
|
||||
ptm = open("/dev/ptmx", O_RDWR);
|
||||
if(ptm == -1)
|
||||
if(openpty(&ptm, &pts, NULL, NULL, NULL) == -1)
|
||||
err(EXIT_FAILURE, "cannot open pty");
|
||||
#endif
|
||||
#if defined(_XOPEN_SOURCE)
|
||||
if(ptm != -1) {
|
||||
if(grantpt(ptm) == -1)
|
||||
err(EXIT_FAILURE, "cannot grant access to pty");
|
||||
if(unlockpt(ptm) == -1)
|
||||
err(EXIT_FAILURE, "cannot unlock pty");
|
||||
ptsdev = ptsname(ptm);
|
||||
if(!ptsdev)
|
||||
err(EXIT_FAILURE, "slave pty name undefined");
|
||||
pts = open(ptsdev, O_RDWR);
|
||||
if(pts == -1)
|
||||
err(EXIT_FAILURE, "cannot open slave pty");
|
||||
}
|
||||
else
|
||||
err(EXIT_FAILURE, "cannot open pty");
|
||||
#endif
|
||||
}
|
||||
|
||||
void
|
||||
shell(void) {
|
||||
static char *shell = NULL;
|
||||
|
||||
if(!shell && !(shell = getenv("SHELL")))
|
||||
shell = "/bin/sh";
|
||||
pid = fork();
|
||||
switch(pid) {
|
||||
case -1:
|
||||
err(EXIT_FAILURE, "cannot fork");
|
||||
case 0:
|
||||
setsid();
|
||||
dup2(pts, STDIN_FILENO);
|
||||
dup2(pts, STDOUT_FILENO);
|
||||
dup2(pts, STDERR_FILENO);
|
||||
close(ptm);
|
||||
putenv("TERM=vt102");
|
||||
execvp(shell, NULL);
|
||||
break;
|
||||
default:
|
||||
close(pts);
|
||||
signal(SIGCHLD, sigchld);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
sigchld(int n) {
|
||||
int ret;
|
||||
|
||||
if(waitpid(pid, &ret, 0) == -1)
|
||||
err(EXIT_FAILURE, "waiting for child failed");
|
||||
if(WIFEXITED(ret))
|
||||
exit(WEXITSTATUS(ret));
|
||||
else
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
char
|
||||
unbuffer(void) {
|
||||
char c;
|
||||
|
||||
c = buf.data[buf.s++];
|
||||
buf.s %= LENGTH(buf.data);
|
||||
buf.n--;
|
||||
return c;
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char *argv[]) {
|
||||
fd_set rfds;
|
||||
|
||||
if(argc == 2 && !strcmp("-v", argv[1]))
|
||||
errx(EXIT_SUCCESS, "std-"VERSION", © 2008 Matthias-Christian Ott");
|
||||
else if(argc == 1)
|
||||
errx(EXIT_FAILURE, "usage: std [-v]");
|
||||
getpty();
|
||||
shell();
|
||||
FD_ZERO(&rfds);
|
||||
FD_SET(STDIN_FILENO, &rfds);
|
||||
FD_SET(ptm, &rfds);
|
||||
if(!(fptm = fdopen(ptm, "r+")))
|
||||
err(EXIT_FAILURE, "cannot open pty");
|
||||
if(fcntl(ptm, F_SETFL, O_NONBLOCK) == -1)
|
||||
err(EXIT_FAILURE, "cannot set pty to non-blocking mode");
|
||||
if(fcntl(STDIN_FILENO, F_SETFL, O_NONBLOCK) == -1)
|
||||
err(EXIT_FAILURE, "cannot set stdin to non-blocking mode");
|
||||
for(;;) {
|
||||
if(select(MAX(ptm, STDIN_FILENO) + 1, &rfds, NULL, NULL, NULL) == -1)
|
||||
err(EXIT_FAILURE, "cannot select");
|
||||
if(FD_ISSET(ptm, &rfds)) {
|
||||
for(;;) {
|
||||
if((c = getc(fptm)) == EOF) {
|
||||
if(feof(fptm)) {
|
||||
FD_CLR(ptm, &rfds);
|
||||
fflush(fptm);
|
||||
break;
|
||||
}
|
||||
if(errno != EAGAIN)
|
||||
err(EXIT_FAILURE, "cannot read from pty");
|
||||
fflush(stdout);
|
||||
break;
|
||||
}
|
||||
switch(c) {
|
||||
case '\033':
|
||||
parseesc();
|
||||
break;
|
||||
default:
|
||||
putchar(c);
|
||||
}
|
||||
}
|
||||
fflush(stdout);
|
||||
}
|
||||
if(FD_ISSET(STDIN_FILENO, &rfds)) {
|
||||
for(;;) {
|
||||
if((c = getchar()) == EOF) {
|
||||
if(feof(stdin)) {
|
||||
FD_CLR(STDIN_FILENO, &rfds);
|
||||
fflush(fptm);
|
||||
break;
|
||||
}
|
||||
if(errno != EAGAIN)
|
||||
err(EXIT_FAILURE, "cannot read from stdin");
|
||||
fflush(fptm);
|
||||
break;
|
||||
}
|
||||
switch(c) {
|
||||
case ':':
|
||||
parsecmd();
|
||||
break;
|
||||
default:
|
||||
putc(c, fptm);
|
||||
}
|
||||
}
|
||||
fflush(fptm);
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in a new issue