/[CvsGraph]/cvsgraph/rcsl.l
ViewVC logotype

Annotate of /cvsgraph/rcsl.l

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph


Revision 1.3 - (hide annotations)
Mon Mar 10 22:57:21 2003 UTC (14 years, 9 months ago) by bertho
Branch: MAIN
CVS Tags: REL_1_4_0
Changes since 1.2: +2 -0 lines
*** empty log message ***
1 bertho 1.1 /*
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    
28     %{
29     #include <stdio.h>
30     #include <stdlib.h>
31     #include <string.h>
32     #include <ctype.h>
33    
34     #include "utils.h"
35     #include "readconf.h"
36     #include "rcs.h"
37     #include "rcs.tab.h"
38    
39     #define SKIP_DELTATEXT 1
40    
41     static void reset_str(void);
42     static void add_str(const char *s, int l);
43     static char *get_str(void);
44    
45     static int skip_string = 0;
46    
47     #define YY_NO_UNPUT 1
48    
49     %}
50    
51     ws [\b\t\v\f\r ]
52     num [0-9.]+
53     digit [0-9]
54     idchar [!-#%-+\-/<-?A-~\240-\377]
55     special [$,.:;@]
56    
57     %%
58     /* RCS keywords */
59     head return tHEAD;
60     branch return tBRANCH;
61     access return tACCESS;
62     symbols return tSYMBOLS;
63     locks return tLOCKS;
64     strict return tSTRICT;
65     comment return tCOMMENT;
66     expand return tEXPAND;
67     date return tDATE;
68     author return tAUTHOR;
69     state return tSTATE;
70     branches return tBRANCHES;
71     next return tNEXT;
72     desc return tDESC;
73     log return tLOG;
74     text return tTEXT;
75     /* CVS extensions */
76     owner return tOWNER;
77     group return tGROUP;
78     permissions return tPERMISSIONS;
79     special return tSPECIAL;
80     symlnk return tSYMLINK;
81     hardlinks return tHARDLINKS;
82     /* Other known extensions */
83     namespace return tNAMESPACE;
84     dead return tDEAD;
85    
86     /* Here come any other 'newphrase' constructs */
87     {num}?{idchar}({idchar}|{num})* {
88     rcslval.str = xstrdup(rcstext);
89     return tNEWPHRASE;
90     }
91    
92     /* Special rules for skipping everything after a 'newphrase' part */
93     <xSKIP>[^;@\n]+ ;
94     <xSKIP>\n line_number++;
95     <xSKIP>@ BEGIN(xSKIPSTR);
96     <xSKIP>; BEGIN(INITIAL); return *rcstext;
97    
98     <xSKIPSTR>[^\n@]+ ;
99     <xSKIPSTR>\n line_number++;
100     <xSKIPSTR>@@ ;
101     <xSKIPSTR>@ BEGIN(xSKIP);
102    
103     {num} rcslval.str = xstrdup(rcstext); return tREV;
104     [:;$] return *rcstext;
105    
106     <xID>{ws}+ ;
107     <xID>\n line_number++;
108     <xID>{special} BEGIN(INITIAL); return *rcstext;
109     <xID>{num}?{idchar}({idchar}|{num})* {
110     rcslval.str = xstrdup(rcstext);
111     BEGIN(INITIAL);
112     return tID;
113     }
114 bertho 1.3 <xID>{num}?. rcserror("Invalid character in ID '%s' (0x%02x)", rcstext, rcstext[yyleng-1]);
115 bertho 1.1
116     <xSYM>{ws}+ ;
117     <xSYM>\n line_number++;
118     <xSYM>{special} BEGIN(INITIAL); return *rcstext;
119     <xSYM>{digit}*{idchar}({idchar}|{digit})* {
120     rcslval.str = xstrdup(rcstext);
121     BEGIN(INITIAL);
122     return tSYM;
123     }
124 bertho 1.3 <xSYM>{digit}*. rcserror("Invalid character in SYMBOL '%s' (0x%02x)", rcstext, rcstext[yyleng-1]);
125 bertho 1.1
126     @ reset_str(); BEGIN(xSTR);
127     <xSTR>[^@\n]+ add_str(rcstext, rcsleng);
128     <xSTR>\n line_number++; add_str(rcstext, rcsleng);
129     <xSTR>@@ add_str(rcstext, 1);
130     <xSTR>@ rcslval.str = get_str(); BEGIN(INITIAL); skip_string = 0; return tSTRING;
131    
132    
133     {ws}+ ; /* Ignore whitespace */
134     \n line_number++;
135    
136     . rcserror("Unknown char/unmatched text '%c' (0x%02x)", isprint(*rcstext) ? *rcstext : ' ', *rcstext);
137    
138     %%
139    
140     int rcswrap(void)
141     {
142     return 1;
143     }
144    
145     void set_id(void)
146     {
147     BEGIN(xID);
148     }
149    
150     void set_sym(void)
151     {
152     BEGIN(xSYM);
153     }
154    
155     void set_skip(void)
156     {
157     BEGIN(xSKIP);
158     }
159    
160     void set_skipstr(void)
161     {
162     skip_string = 1;
163     }
164    
165     #define STRALLOCSIZE 256
166     static char *str;
167     static int nstr;
168     static int nastr;
169    
170     static void reset_str(void)
171     {
172     nstr = 0;
173     }
174    
175     static void add_str(const char *s, int l)
176     {
177     #ifdef SKIP_DELTATEXT
178     if(skip_string)
179     return;
180     #endif
181     if(nstr + l + 1 > nastr)
182     {
183     str = xrealloc(str, nastr+STRALLOCSIZE);
184     nastr += STRALLOCSIZE;
185     }
186     memcpy(str+nstr, s, l);
187     nstr += l;
188     }
189    
190     static char *get_str(void)
191     {
192     #ifdef SKIP_DELTATEXT
193     if(skip_string)
194     return xstrdup("");
195     #endif
196 bertho 1.2 if(str)
197     {
198     str[nstr] = '\0';
199     return xstrdup(str);
200     }
201     else
202     return xstrdup("");
203 bertho 1.1 }
204    

  ViewVC Help
Powered by ViewVC 1.1.0 with CvsGraph 1.7.0