/[CvsGraph]/cvsgraph/rcsl.l
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Revision 1.4 - (show annotations)
Thu Jul 15 15:12:07 2004 UTC (13 years, 5 months ago) by bertho
Branch: MAIN
CVS Tags: REL_1_4_1, REL_1_5_0
Changes since 1.3: +16 -0 lines
Fix the author recognition for CVSNT with broken rcsfile(5) format.
This might not be a total remedy, but should fix some.
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 xSTR
23 %x xID
24 %x xSYM
25 %x xSKIP
26 %x xSKIPSTR
27 %x xAUTHOR
28
29 %{
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <ctype.h>
34
35 #include "utils.h"
36 #include "readconf.h"
37 #include "rcs.h"
38 #include "rcs.tab.h"
39
40 #define SKIP_DELTATEXT 1
41
42 static void reset_str(void);
43 static void add_str(const char *s, int l);
44 static char *get_str(void);
45
46 static int skip_string = 0;
47
48 #define YY_NO_UNPUT 1
49
50 %}
51
52 ws [\b\t\v\f\r ]
53 num [0-9.]+
54 digit [0-9]
55 idchar [!-#%-+\-/<-?A-~\240-\377]
56 special [$,.:;@]
57
58 %%
59 /* RCS keywords */
60 head return tHEAD;
61 branch return tBRANCH;
62 access return tACCESS;
63 symbols return tSYMBOLS;
64 locks return tLOCKS;
65 strict return tSTRICT;
66 comment return tCOMMENT;
67 expand return tEXPAND;
68 date return tDATE;
69 author return tAUTHOR;
70 state return tSTATE;
71 branches return tBRANCHES;
72 next return tNEXT;
73 desc return tDESC;
74 log return tLOG;
75 text return tTEXT;
76 /* CVS extensions */
77 owner return tOWNER;
78 group return tGROUP;
79 permissions return tPERMISSIONS;
80 special return tSPECIAL;
81 symlnk return tSYMLINK;
82 hardlinks return tHARDLINKS;
83 /* Other known extensions */
84 namespace return tNAMESPACE;
85 dead return tDEAD;
86
87 /* Here come any other 'newphrase' constructs */
88 {num}?{idchar}({idchar}|{num})* {
89 rcslval.str = xstrdup(rcstext);
90 return tNEWPHRASE;
91 }
92
93 /* Special rules for skipping everything after a 'newphrase' part */
94 <xSKIP>[^;@\n]+ ;
95 <xSKIP>\n line_number++;
96 <xSKIP>@ BEGIN(xSKIPSTR);
97 <xSKIP>; BEGIN(INITIAL); return *rcstext;
98
99 <xSKIPSTR>[^\n@]+ ;
100 <xSKIPSTR>\n line_number++;
101 <xSKIPSTR>@@ ;
102 <xSKIPSTR>@ BEGIN(xSKIP);
103
104 {num} rcslval.str = xstrdup(rcstext); return tREV;
105 [:;$] return *rcstext;
106
107 <xID>{ws}+ ;
108 <xID>\n line_number++;
109 <xID>{special} BEGIN(INITIAL); return *rcstext;
110 <xID>{num}?{idchar}({idchar}|{num})* {
111 rcslval.str = xstrdup(rcstext);
112 BEGIN(INITIAL);
113 return tID;
114 }
115 <xID>{num}?. rcserror("Invalid character in ID '%s' (0x%02x)", rcstext, rcstext[yyleng-1]);
116
117 <xSYM>{ws}+ ;
118 <xSYM>\n line_number++;
119 <xSYM>{special} BEGIN(INITIAL); return *rcstext;
120 <xSYM>{digit}*{idchar}({idchar}|{digit})* {
121 rcslval.str = xstrdup(rcstext);
122 BEGIN(INITIAL);
123 return tSYM;
124 }
125 <xSYM>{digit}*. rcserror("Invalid character in SYMBOL '%s' (0x%02x)", rcstext, rcstext[yyleng-1]);
126
127 @ reset_str(); BEGIN(xSTR);
128 <xSTR>[^@\n]+ add_str(rcstext, rcsleng);
129 <xSTR>\n line_number++; add_str(rcstext, rcsleng);
130 <xSTR>@@ add_str(rcstext, 1);
131 <xSTR>@ rcslval.str = get_str(); BEGIN(INITIAL); skip_string = 0; return tSTRING;
132
133 <xAUTHOR>@ reset_str(); BEGIN(xSTR);
134 <xAUTHOR>{ws}+ ;
135 <xAUTHOR>\n line_number++;
136 <xAUTHOR>{special} BEGIN(INITIAL); return *rcstext;
137 <xAUTHOR>{num}?{idchar}({idchar}|{num})* {
138 rcslval.str = xstrdup(rcstext);
139 BEGIN(INITIAL);
140 return tID;
141 }
142 <xAUTHOR>{num}?. rcserror("Invalid character in ID '%s' (0x%02x)", rcstext, rcstext[yyleng-1]);
143
144 {ws}+ ; /* Ignore whitespace */
145 \n line_number++;
146
147 . rcserror("Unknown char/unmatched text '%c' (0x%02x)", isprint(*rcstext) ? *rcstext : ' ', *rcstext);
148
149 %%
150
151 int rcswrap(void)
152 {
153 return 1;
154 }
155
156 void set_id(void)
157 {
158 BEGIN(xID);
159 }
160
161 void set_author(void)
162 {
163 BEGIN(xAUTHOR);
164 }
165
166 void set_sym(void)
167 {
168 BEGIN(xSYM);
169 }
170
171 void set_skip(void)
172 {
173 BEGIN(xSKIP);
174 }
175
176 void set_skipstr(void)
177 {
178 skip_string = 1;
179 }
180
181 #define STRALLOCSIZE 256
182 static char *str;
183 static int nstr;
184 static int nastr;
185
186 static void reset_str(void)
187 {
188 nstr = 0;
189 }
190
191 static void add_str(const char *s, int l)
192 {
193 #ifdef SKIP_DELTATEXT
194 if(skip_string)
195 return;
196 #endif
197 if(nstr + l + 1 > nastr)
198 {
199 str = xrealloc(str, nastr+STRALLOCSIZE);
200 nastr += STRALLOCSIZE;
201 }
202 memcpy(str+nstr, s, l);
203 nstr += l;
204 }
205
206 static char *get_str(void)
207 {
208 #ifdef SKIP_DELTATEXT
209 if(skip_string)
210 return xstrdup("");
211 #endif
212 if(str)
213 {
214 str[nstr] = '\0';
215 return xstrdup(str);
216 }
217 else
218 return xstrdup("");
219 }
220

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