mirror of
https://github.com/ascii-boxes/boxes.git
synced 2025-06-24 19:51:29 +02:00
Removed a stray debug message
Move apply_substitutions() regexp handling function up in file Use apply_substitutions() in read_input() routine also Moved "extern int yyparse()" prototype to start of file
This commit is contained in:
Thomas Jensen
parent
cda91cdbef
commit
f3bdc853b3
266
src/boxes.c
266
src/boxes.c
@ -3,7 +3,7 @@
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* Date created: March 18, 1999 (Thursday, 15:09h)
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* Author: Thomas Jensen
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* tsjensen@stud.informatik.uni-erlangen.de
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* Version: $Id: boxes.c,v 1.13 1999/06/13 15:28:31 tsjensen Exp tsjensen $
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* Version: $Id: boxes.c,v 1.14 1999/06/14 12:08:49 tsjensen Exp tsjensen $
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* Language: ANSI C
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* Platforms: sunos5/sparc, for now
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* World Wide Web: http://home.pages.de/~jensen/boxes/
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@ -34,6 +34,13 @@
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* Revision History:
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*
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* $Log: boxes.c,v $
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* Revision 1.14 1999/06/14 12:08:49 tsjensen
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* Bugfix: best_match() box side detection used numw instead of nume
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* Added apply_substitutions() routine for central regexp handling
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* Added regexp reversion code for box removal
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* Unified use of current_re[pv]rule
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* Added a few comments and debugging code
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*
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* Revision 1.13 1999/06/13 15:28:31 tsjensen
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* Some error message clean-up
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* Regular expression substitutions on input text only if *drawing* a box,
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@ -46,10 +53,10 @@
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* East Padding made dynamic, i.e. dependant on the east side size
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*
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* Revision 1.11 1999/06/03 19:24:14 tsjensen
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* a few fixes related to box removal (as expected)
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* A few fixes related to box removal (as expected)
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*
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* Revision 1.10 1999/06/03 18:54:05 tsjensen
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* lots of fixes
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* Lots of fixes
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* Added remove box functionality (-r), which remains to be tested
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*
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* Revision 1.9 1999/04/09 13:33:24 tsjensen
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@ -72,7 +79,7 @@
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*
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* Revision 1.4 1999/03/30 13:30:19 tsjensen
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* Added minimum width/height for a design. Fixed screwed tiny boxes.
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* Did not handle zero input.
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* Bugfix: Did not handle zero input.
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*
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* Revision 1.3 1999/03/30 09:36:23 tsjensen
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* ... still programming ...
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@ -104,8 +111,9 @@ extern int optind, opterr, optopt; /* for getopt() */
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static const char rcsid_boxes_c[] =
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"$Id: boxes.c,v 1.13 1999/06/13 15:28:31 tsjensen Exp tsjensen $";
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"$Id: boxes.c,v 1.14 1999/06/14 12:08:49 tsjensen Exp tsjensen $";
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extern int yyparse();
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extern FILE *yyin; /* lex input file */
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@ -552,7 +560,7 @@ static int process_commandline (int argc, char *argv[])
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/*
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* Display usage information and terminate
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*/
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printf ("%s - draws boxes around your text\n", PROJECT);
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printf ("%s - draws boxes around your text (and removes them)\n", PROJECT);
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printf (" (c) Thomas Jensen <tsjensen@stud.informatik.uni-erlangen.de>\n");
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printf (" Web page: http://home.pages.de/~jensen/%s/\n", PROJECT);
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usage (stdout);
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@ -864,6 +872,97 @@ void btrim (char *text, size_t *len)
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int apply_substitutions (const int mode)
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/*
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* Apply regular expression substitutions to input text.
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*
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* mode == 0 use replacement rules (box is being *drawn*)
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* == 1 use reversion rules (box is being *removed*)
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*
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* Attn: This modifies the actual input array!
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*
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* RETURNS: == 0 success
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* != 0 error
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*/
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{
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size_t anz_rules;
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reprule_t *rules;
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size_t j, k;
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char buf[LINE_MAX*2];
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size_t buf_len; /* length of string in buf */
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if (opt.design == NULL)
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return 1;
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if (mode == 0) {
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anz_rules = opt.design->anz_reprules;
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rules = opt.design->reprules;
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}
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else if (mode == 1) {
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anz_rules = opt.design->anz_revrules;
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rules = opt.design->revrules;
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}
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else {
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fprintf (stderr, "%s: internal error\n", PROJECT);
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return 2;
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}
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/*
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* Compile regular expressions
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*/
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errno = 0;
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opt.design->current_rule = rules;
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for (j=0; j<anz_rules; ++j, ++(opt.design->current_rule)) {
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rules[j].prog = regcomp (rules[j].search);
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}
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opt.design->current_rule = NULL;
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if (errno) return 3;
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/*
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* Apply regular expression substitutions to input lines
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*/
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for (k=0; k<input.anz_lines; ++k) {
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opt.design->current_rule = rules;
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for (j=0; j<anz_rules; ++j, ++(opt.design->current_rule)) {
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "myregsub (0x%p, \"%s\", %d, \"%s\", buf, %d, \'%c\') == ",
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rules[j].prog, input.lines[k].text,
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input.lines[k].len, rules[j].repstr, LINE_MAX*2,
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rules[j].mode);
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#endif
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errno = 0;
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buf_len = myregsub (rules[j].prog, input.lines[k].text,
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input.lines[k].len, rules[j].repstr, buf, LINE_MAX*2,
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rules[j].mode);
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "%d\n", buf_len);
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#endif
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if (errno) return 1;
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BFREE (input.lines[k].text);
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input.lines[k].text = (char *) strdup (buf);
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if (input.lines[k].text == NULL) {
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perror (PROJECT);
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return 1;
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}
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input.lines[k].len = buf_len;
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if (input.lines[k].len > input.maxline)
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input.maxline = input.lines[k].len;
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "input.lines[%d] == {%d, \"%s\"}\n", k,
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input.lines[k].len, input.lines[k].text);
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#endif
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}
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opt.design->current_rule = NULL;
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}
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return 0;
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}
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int read_all_input()
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/*
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* Read entire input from stdin and store it in 'input' array.
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@ -888,18 +987,6 @@ int read_all_input()
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input.indent = LINE_MAX;
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input.maxline = 0;
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/*
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* Compile regular expressions
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*/
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errno = 0;
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for (i=0; i<opt.design->anz_reprules; ++i) {
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opt.design->current_rule = opt.design->reprules + i;
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opt.design->reprules[i].prog =
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regcomp (opt.design->reprules[i].search);
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}
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opt.design->current_rule = NULL;
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if (errno) return 1;
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/*
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* Start reading
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*/
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@ -943,46 +1030,6 @@ int read_all_input()
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input.lines[input.anz_lines].text = (char *) strdup (buf);
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}
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/*
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* Apply regular expression substitutions to line
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*/
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if (opt.r == 0) {
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for (i=0; i<opt.design->anz_reprules; ++i) {
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opt.design->current_rule = opt.design->reprules + i;
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errno = 0;
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "myregsub (0x%p, \"%s\", %d, \"%s\", buf, %d, \'%c\') == ",
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opt.design->reprules[i].prog,
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input.lines[input.anz_lines].text,
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input.lines[input.anz_lines].len,
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opt.design->reprules[i].repstr, LINE_MAX+2,
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opt.design->reprules[i].mode);
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#endif
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input.lines[input.anz_lines].len =
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myregsub (opt.design->reprules[i].prog,
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input.lines[input.anz_lines].text,
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input.lines[input.anz_lines].len,
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opt.design->reprules[i].repstr,
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buf, LINE_MAX+2, opt.design->reprules[i].mode);
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "%d\n", input.lines[input.anz_lines].len);
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#endif
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if (errno) return 1;
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BFREE (input.lines[input.anz_lines].text);
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input.lines[input.anz_lines].text = (char *) strdup (buf);
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if (input.lines[input.anz_lines].text == NULL) {
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perror (PROJECT);
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return 1;
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}
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "input.lines[input.anz_lines] == {%d, \"%s\"}\n",
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input.lines[input.anz_lines].len,
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input.lines[input.anz_lines].text);
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#endif
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}
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opt.design->current_rule = NULL;
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}
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/*
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* Update length of longest line
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*/
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@ -1018,6 +1065,14 @@ int read_all_input()
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return 0;
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}
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/*
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* Apply regular expression substitutions
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*/
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if (opt.r == 0) {
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if (apply_substitutions(0) != 0)
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return 1;
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}
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/*
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* Remove indentation, unless we want to preserve it (when removing
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* a box or if the user wants to retain it inside the box)
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@ -2147,7 +2202,6 @@ int best_match (const line_t *line, char **ws, char **we, char **es, char **ee)
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quality = 0;
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cs = opt.design->shape + ENE;
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for (j=0,k=0,w=1; j<nume; ++j,++k) {
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__TJ("b");
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if (k == cs->height) {
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k = 0;
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cs = opt.design->shape + east_side[++w];
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@ -2979,6 +3033,12 @@ int remove_box()
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void output_input()
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/*
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* Output contents of input line list "as is" to standard output, except
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* for removal of trailing spaces (trimming).
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*/
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{
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size_t j;
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@ -2992,96 +3052,8 @@ void output_input()
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int apply_substitutions (const int mode)
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/*
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* Apply regular expression substitutions to input text.
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*
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* mode == 0 use replacement rules (box is being *drawn*)
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* == 1 use reversion rules (box is being *removed*)
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*
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* RETURNS: == 0 success
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* != 0 error
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*/
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{
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size_t anz_rules;
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reprule_t *rules;
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size_t j, k;
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char buf[LINE_MAX*2];
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size_t buf_len; /* length of string in buf */
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if (opt.design == NULL)
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return 1;
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if (mode == 0) {
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anz_rules = opt.design->anz_reprules;
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rules = opt.design->reprules;
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}
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else if (mode == 1) {
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anz_rules = opt.design->anz_revrules;
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rules = opt.design->revrules;
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}
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else {
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fprintf (stderr, "%s: internal error\n", PROJECT);
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return 2;
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}
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/*
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* Compile regular expressions
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*/
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errno = 0;
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opt.design->current_rule = rules;
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for (j=0; j<anz_rules; ++j, ++(opt.design->current_rule)) {
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rules[j].prog = regcomp (rules[j].search);
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}
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opt.design->current_rule = NULL;
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if (errno) return 3;
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/*
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* Apply regular expression substitutions to input lines
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*/
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for (k=0; k<input.anz_lines; ++k) {
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opt.design->current_rule = rules;
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for (j=0; j<anz_rules; ++j, ++(opt.design->current_rule)) {
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "myregsub (0x%p, \"%s\", %d, \"%s\", buf, %d, \'%c\') == ",
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rules[j].prog, input.lines[k].text,
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input.lines[k].len, rules[j].repstr, LINE_MAX*2,
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rules[j].mode);
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#endif
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errno = 0;
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buf_len = myregsub (rules[j].prog, input.lines[k].text,
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input.lines[k].len, rules[j].repstr, buf, LINE_MAX*2,
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rules[j].mode);
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "%d\n", buf_len);
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#endif
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if (errno) return 1;
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BFREE (input.lines[k].text);
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input.lines[k].text = (char *) strdup (buf);
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if (input.lines[k].text == NULL) {
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perror (PROJECT);
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return 1;
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}
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input.lines[k].len = buf_len;
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#ifdef REGEXP_DEBUG
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fprintf (stderr, "input.lines[%d] == {%d, \"%s\"}\n", k,
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input.lines[k].len, input.lines[k].text);
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#endif
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}
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opt.design->current_rule = NULL;
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}
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return 0;
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}
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int main (int argc, char *argv[])
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{
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extern int yyparse();
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int rc; /* general return code */
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design_t *tmp;
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sentry_t *thebox;
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