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Revision 1.4 - (show annotations)
Sun Mar 4 01:38:23 2001 UTC (16 years, 7 months ago) by bertho
Branch: MAIN
Changes since 1.3: +14 -4 lines
Major update of the code.
- Complete new method of getting the revision structure by directly
  reading the rcs/cvs file. This should also speed things a bit
  because no external program needs to be called anymore.
  This also means that "remote-graphs" are no longer a possible
  extension of the program. But, who cares.
- Implemented branch-kerning to save place. The images are now
  much smaller in width, dependent on the settings of the exterior
  margins.
- Fixed disjoint braches by reading the structure direct from the
  rcs/cvs file. The revision/branch structure is no longer determined
  from the revision numbers, but solely from the rcs/cvs file structure.
- Fixed display of branches with no revisions attached to them. These
  only have a tag describing the new branch.
1 /*
2 * CvsGraph graphical representation generator of brances and revisions
3 * of a file in cvs/rcs.
4 *
5 * Copyright (C) 2001 B. Stultiens
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 %x STR
23
24 %{
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <ctype.h>
29
30 #include "utils.h"
31 #include "readconf.h"
32 #include "y.tab.h"
33
34 static void reset_str(void);
35 static void add_str(const char *s, int l);
36 static char *get_str(void);
37
38 int line_number;
39
40 #define YY_NO_UNPUT 1
41
42 %}
43
44 %%
45 branch_bgcolor return tBRANCH_BGCOLOR;
46 branch_bspace return tBRANCH_BSPACE;
47 branch_color return tBRANCH_COLOR;
48 branch_font return tBRANCH_FONT;
49 branch_lspace return tBRANCH_LSPACE;
50 branch_rspace return tBRANCH_RSPACE;
51 branch_tspace return tBRANCH_TSPACE;
52 branch_connect return tBRANCH_CONNECT;
53 branch_margin return tBRANCH_MARGIN;
54 color_bg return tCOLOR_BG;
55 cvsmodule return tCVSMODULE;
56 cvsroot return tCVSROOT;
57 rev_color return tREV_COLOR;
58 rev_font return tREV_FONT;
59 rev_separator return tREV_SEPARATOR;
60 rev_minline return tREV_MINLINE;
61 rev_maxline return tREV_MAXLINE;
62 rev_lspace return tREV_LSPACE;
63 rev_rspace return tREV_RSPACE;
64 rev_tspace return tREV_TSPACE;
65 rev_bspace return tREV_BSPACE;
66 tag_color return tTAG_COLOR;
67 tag_font return tTAG_FONT;
68 title return tTITLE;
69 title_x return tTITLE_X;
70 title_y return tTITLE_Y;
71 title_font return tTITLE_FONT;
72 title_align return tTITLE_ALIGN;
73 title_color return tTITLE_COLOR;
74 margin_top return tMARGIN_TOP;
75 margin_bottom return tMARGIN_BOTTOM;
76 margin_left return tMARGIN_LEFT;
77 margin_right return tMARGIN_RIGHT;
78 image_type return tIMAGE_TYPE;
79 image_quality return tIMAGE_QUALITY;
80 map_name return tMAP_NAME;
81 map_branch return tMAP_BRANCH;
82 map_rev return tMAP_REV;
83
84 jpeg yylval.num = IMAGE_JPEG; return tNUMBER;
85 png yylval.num = IMAGE_PNG; return tNUMBER;
86 gif yylval.num = IMAGE_GIF; return tNUMBER;
87
88 true yylval.num = 1; return tNUMBER;
89 false yylval.num = 0; return tNUMBER;
90
91 left yylval.num = 0; return tNUMBER;
92 center yylval.num = 1; return tNUMBER;
93 right yylval.num = 2; return tNUMBER;
94
95 tiny yylval.num = 0; return tNUMBER;
96 small yylval.num = 1; return tNUMBER;
97 medium yylval.num = 2; return tNUMBER;
98 large yylval.num = 3; return tNUMBER;
99 giant yylval.num = 4; return tNUMBER;
100
101 [a-zA-Z_][a-zA-Z0-9_]* yylval.str = xstrdup(yytext); return tUNKNOWN;
102
103 [+-]?0[0-7]* yylval.num = strtol(yytext, NULL, 8); return tNUMBER;
104 [+-]?[1-9][0-9]* yylval.num = strtol(yytext, NULL, 10); return tNUMBER;
105 [+-]?0[xX][0-9a-fA-F]+ yylval.num = strtol(yytext, NULL, 16); return tNUMBER;
106 [+-]?0[xX] yyerror("Invalid hex number");
107
108 = return *yytext;
109 ; return *yytext;
110
111 \" reset_str(); BEGIN(STR);
112 <STR>[^\\\"\n]* add_str(yytext, yyleng);
113 <STR>\\[abfnrtv] {
114 char ch;
115 switch(yytext[1])
116 {
117 case 'a': ch = '\a'; break;
118 case 'b': ch = '\b'; break;
119 case 'f': ch = '\f'; break;
120 case 'n': ch = '\n'; break;
121 case 'r': ch = '\r'; break;
122 case 't': ch = '\t'; break;
123 case 'v': ch = '\v'; break;
124 }
125 add_str(&ch, 1);
126 }
127 <STR>\\[012][0-7]{0,2} { char ch = strtol(yytext+1, NULL, 8); add_str(&ch, 1); }
128 <STR>\\[xX][a-fA-F0-9]{2} { char ch = strtol(yytext+1, NULL, 8); add_str(&ch, 1); }
129 <STR>\\[xX][a-fA-F0-9] yyerror("Invalid hex escape");
130 <STR>\\. add_str(yytext, yyleng);
131 <STR>\n yyerror("Newline in string");
132 <STR>\" yylval.str = get_str(); BEGIN(INITIAL); return tSTRING;
133
134 [ \t\f\v\r\b]+ ; /* Ignore whitespace */
135 #[^\n]* ; /* Ignore comments */
136
137 \n line_number++;
138 . yyerror("Unknown char/unmatched text '%c' (0x%02x)", isprint(*yytext) ? *yytext : ' ', *yytext);
139
140 %%
141
142 int yywrap(void)
143 {
144 return 1;
145 }
146
147 #define STRALLOCSIZE 128
148 static char *str;
149 static int nstr;
150 static int nastr;
151
152 static void reset_str(void)
153 {
154 nstr = 0;
155 }
156
157 static void add_str(const char *s, int l)
158 {
159 if(nstr + l + 1 > nastr)
160 {
161 str = xrealloc(str, nastr+STRALLOCSIZE);
162 nastr += STRALLOCSIZE;
163 }
164 memcpy(str+nstr, s, l);
165 nstr += l;
166 }
167
168 static char *get_str(void)
169 {
170 str[nstr] = '\0';
171 return xstrdup(str);
172 }
173

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