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Added GNU GPL disclaimer

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Added -k option (kill leading/trailing blank lines on removal yes/no)
Bugfix: REPLACE and indentation conflict. Now applying regexp substitutions
only after indentation was already handled.
This commit is contained in:
Thomas Jensen 1999-07-20 18:45:29 +00:00
parent f73ceddb71
commit 0d0c2325b7
1 changed files with 75 additions and 34 deletions
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109
src/boxes.c
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@ -1,39 +1,56 @@
/*
* File: boxes.c
* Date created: March 18, 1999 (Thursday, 15:09h)
* Author: Thomas Jensen
* Author: Copyright (C) 1999 Thomas Jensen
* tsjensen@stud.informatik.uni-erlangen.de
* Version: $Id: boxes.c,v 1.24 1999/06/30 12:37:25 tsjensen Exp tsjensen $
* Version: $Id: boxes.c,v 1.25 1999/07/12 18:16:36 tsjensen Exp tsjensen $
* Language: ANSI C
* Platforms: sunos5/sparc, for now
* World Wide Web: http://home.pages.de/~jensen/boxes/
* Purpose: Filter to draw boxes around input text (and remove it).
* Intended for use with vim(1).
*
* Remarks: - This version is leaking a small bit of memory. The sizes
* of the leaks do not depend on the number of lines
* processed, so the leaks don't matter as long as this
* program is executed as a single process.
* - The decision to number box shapes in clockwise order was
* a major design mistake. Treatment of box parts of the
* same alignment (N-S and E-W) is usually combined in one
* function, which must now deal with the numbering being
* reversed all the time. This is nasty, but changing the
* shape order would pretty much mean a total rewrite of
* the code, so we'll have to live with it. :-(
* - All shapes defined in a box design must be used in any
* box of that design at least once. In other words, there
* must not be a shape which is defined in the config file
* but cannot be found in an actual box of that design.
* This sort of limits how small your boxes can get.
* However, in practice it is not a problem, because boxes
* which must be small usually consist of small shapes
* which can be packed pretty tightly anyway. And again,
* changing this would pretty much mean a total rewrite.
* Remarks: o This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later
* version.
* o This program is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
* o You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* - This version is leaking a small bit of memory. The sizes of
* the leaks do not depend on the number of lines processed, so
* the leaks don't matter as long as this program is executed as
* a single process.
* - The decision to number box shapes in clockwise order was a
* major design mistake. Treatment of box parts of the same
* alignment (N-S and E-W) is usually combined in one function,
* which must now deal with the numbering being reversed all the
* time. This is nasty, but changing the shape order would
* pretty much mean a total rewrite of the code, so we'll have
* to live with it. :-(
* - All shapes defined in a box design must be used in any box of
* that design at least once. In other words, there must not be
* a shape which is defined in the config file but cannot be
* found in an actual box of that design. This sort of limits
* how small your boxes can get. However, in practice it is not
* a problem, because boxes which must be small usually consist
* of small shapes which can be packed pretty tightly anyway.
* And again, changing this would pretty much mean a total
* rewrite.
*
* Revision History:
*
* $Log: boxes.c,v $
* Revision 1.25 1999/07/12 18:16:36 tsjensen
* Added include "config.h" to top of file
*
* Revision 1.24 1999/06/30 12:37:25 tsjensen
* Added [lcr] "shorthand" to -a option
*
@ -176,7 +193,7 @@ extern int optind, opterr, optopt; /* for getopt() */
static const char rcsid_boxes_c[] =
"$Id: boxes.c,v 1.24 1999/06/30 12:37:25 tsjensen Exp tsjensen $";
"$Id: boxes.c,v 1.25 1999/07/12 18:16:36 tsjensen Exp tsjensen $";
/* _\|/_
@ -220,6 +237,7 @@ static void usage (FILE *st)
fprintf (st, " -f file use only file as configuration file\n");
fprintf (st, " -h print usage information\n");
fprintf (st, " -i mode indentation mode\n");
fprintf (st, " -k bool kill leading/trailing blank lines on removal or not\n");
fprintf (st, " -l list available box designs w/ samples\n");
fprintf (st, " -p fmt padding [default: design-dependent]\n");
fprintf (st, " -r remove box from input\n");
@ -257,15 +275,16 @@ static int process_commandline (int argc, char *argv[])
*/
memset (&opt, 0, sizeof(opt_t));
opt.tabstop = DEF_TABSTOP;
yyin = stdin;
opt.killblank = -1;
for (idummy=0; idummy<ANZ_SIDES; ++idummy)
opt.padding[idummy] = -1;
yyin = stdin;
/*
* Parse Command Line
*/
do {
oc = getopt (argc, argv, "a:d:f:hi:lp:rs:t:v");
oc = getopt (argc, argv, "a:d:f:hi:k:lp:rs:t:v");
switch (oc) {
@ -397,6 +416,20 @@ static int process_commandline (int argc, char *argv[])
}
break;
/*
* Kill blank lines or not [default: design-dependent]
*/
case 'k':
if (strisyes (optarg))
opt.killblank = 1;
else if (strisno (optarg))
opt.killblank = 0;
else {
fprintf (stderr, "%s: -k: invalid parameter\n", PROJECT);
return 1;
}
break;
case 'l':
/*
* List available box styles
@ -650,7 +683,7 @@ static int process_commandline (int argc, char *argv[])
}
}
#ifdef DEBUG
#if defined(DEBUG) || 0
fprintf (stderr, "Command line option settings (excerpt):\n");
fprintf (stderr, "- Padding: l%d o%d r%d u%d\n", opt.padding[BLEF],
opt.padding[BTOP], opt.padding[BRIG], opt.padding[BBOT]);
@ -663,6 +696,7 @@ static int process_commandline (int argc, char *argv[])
opt.indentmode? opt.indentmode: '?');
fprintf (stderr, "- Line justification: \'%c\'\n",
opt.justify? opt.justify: '?');
fprintf (stderr, "- Kill blank lines: %d\n", opt.killblank);
#endif
return 0;
@ -907,14 +941,6 @@ static int read_all_input()
return 0;
}
/*
* Apply regular expression substitutions
*/
if (opt.r == 0) {
if (apply_substitutions(0) != 0)
return 1;
}
/*
* Remove indentation, unless we want to preserve it (when removing
* a box or if the user wants to retain it inside the box)
@ -935,6 +961,14 @@ static int read_all_input()
input.indent = 0; /* seems like blank lines only */
}
/*
* Apply regular expression substitutions
*/
if (opt.r == 0) {
if (apply_substitutions(0) != 0)
return 1;
}
#if 0
/*
* Debugging Code: Display contents of input structure
@ -1077,6 +1111,13 @@ int main (int argc, char *argv[])
#ifdef DEBUG
fprintf (stderr, "Removing Box ...\n");
#endif
if (opt.killblank == -1) {
if (empty_side (opt.design->shape, BTOP)
&& empty_side (opt.design->shape, BBOT))
opt.killblank = 0;
else
opt.killblank = 1;
}
rc = remove_box();
if (rc)
exit (EXIT_FAILURE);