diff options
author | Luigi Rizzo <rizzo@icir.org> | 2006-04-27 17:00:09 +0000 |
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committer | Luigi Rizzo <rizzo@icir.org> | 2006-04-27 17:00:09 +0000 |
commit | e51725d6d4bb9f980bdce9510488b3eab5612843 (patch) | |
tree | 560006c04a1bf6c548b00aa19b61ab50263f4bfd /pbx/ael/ael_lex.c | |
parent | 7422c5495bc33f0e7c4f3b0afc2392bbc9d86a0f (diff) |
add some comments to the code
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@22869 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'pbx/ael/ael_lex.c')
-rw-r--r-- | pbx/ael/ael_lex.c | 137 |
1 files changed, 71 insertions, 66 deletions
diff --git a/pbx/ael/ael_lex.c b/pbx/ael/ael_lex.c index b537d5f15..f87c0cdfe 100644 --- a/pbx/ael/ael_lex.c +++ b/pbx/ael/ael_lex.c @@ -663,8 +663,8 @@ static int pbcpos = 0; static int parencount = 0; static int commaout = 0; -static int my_lineno = 1; -static int my_col = 0; +static int my_lineno = 1; /* current line in the source */ +static int my_col = 0; /* current column in the source */ char *my_file = 0; /* used also in the bison code */ char *prev_word; #define MAX_INCLUDE_DEPTH 50 @@ -685,15 +685,22 @@ struct stackelement { static struct stackelement include_stack[MAX_INCLUDE_DEPTH]; static int include_stack_index = 0; +/* + * if we use the @n feature of bison, we must supply the start/end + * location of tokens in the structure pointed by yylloc. + * Simple tokens are just assumed to be on the same line, so + * the line number is constant, and the column is incremented + * by the length of the token. + */ #define STORE_POS do { \ yylloc->first_line = yylloc->last_line = my_lineno; \ - yylloc->last_column=my_col+yyleng-1; \ yylloc->first_column=my_col; \ + yylloc->last_column=my_col+yyleng-1; \ my_col+=yyleng; \ } while (0) /* %option yylineno I've tried hard, but haven't been able to use this */ -#line 697 "ael_lex.c" +#line 704 "ael_lex.c" #define INITIAL 0 #define paren 1 @@ -933,10 +940,10 @@ YY_DECL register int yy_act; struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; -#line 83 "ael.flex" +#line 90 "ael.flex" -#line 940 "ael_lex.c" +#line 947 "ael_lex.c" yylval = yylval_param; @@ -1027,223 +1034,221 @@ do_action: /* This label is used only to access EOF actions. */ case 1: YY_RULE_SETUP -#line 85 "ael.flex" +#line 92 "ael.flex" { STORE_POS; return LC;} YY_BREAK case 2: YY_RULE_SETUP -#line 86 "ael.flex" +#line 93 "ael.flex" { STORE_POS; return RC;} YY_BREAK case 3: YY_RULE_SETUP -#line 87 "ael.flex" +#line 94 "ael.flex" { STORE_POS; return LP;} YY_BREAK case 4: YY_RULE_SETUP -#line 88 "ael.flex" +#line 95 "ael.flex" { STORE_POS; return RP;} YY_BREAK case 5: YY_RULE_SETUP -#line 89 "ael.flex" +#line 96 "ael.flex" { STORE_POS; return SEMI;} YY_BREAK case 6: YY_RULE_SETUP -#line 90 "ael.flex" +#line 97 "ael.flex" { STORE_POS; return EQ;} YY_BREAK case 7: YY_RULE_SETUP -#line 91 "ael.flex" +#line 98 "ael.flex" { STORE_POS; return COMMA;} YY_BREAK case 8: YY_RULE_SETUP -#line 92 "ael.flex" +#line 99 "ael.flex" { STORE_POS; return COLON;} YY_BREAK case 9: YY_RULE_SETUP -#line 93 "ael.flex" +#line 100 "ael.flex" { STORE_POS; return AMPER;} YY_BREAK case 10: YY_RULE_SETUP -#line 94 "ael.flex" +#line 101 "ael.flex" { STORE_POS; return BAR;} YY_BREAK case 11: YY_RULE_SETUP -#line 95 "ael.flex" +#line 102 "ael.flex" { STORE_POS; return EXTENMARK;} YY_BREAK case 12: YY_RULE_SETUP -#line 96 "ael.flex" +#line 103 "ael.flex" { STORE_POS; return AT;} YY_BREAK case 13: YY_RULE_SETUP -#line 97 "ael.flex" +#line 104 "ael.flex" {/*comment*/} YY_BREAK case 14: YY_RULE_SETUP -#line 98 "ael.flex" +#line 105 "ael.flex" { STORE_POS; return KW_CONTEXT;} YY_BREAK case 15: YY_RULE_SETUP -#line 99 "ael.flex" +#line 106 "ael.flex" { STORE_POS; return KW_ABSTRACT;} YY_BREAK case 16: YY_RULE_SETUP -#line 100 "ael.flex" +#line 107 "ael.flex" { STORE_POS; return KW_MACRO;}; YY_BREAK case 17: YY_RULE_SETUP -#line 101 "ael.flex" +#line 108 "ael.flex" { STORE_POS; return KW_GLOBALS;} YY_BREAK case 18: YY_RULE_SETUP -#line 102 "ael.flex" +#line 109 "ael.flex" { STORE_POS; return KW_IGNOREPAT;} YY_BREAK case 19: YY_RULE_SETUP -#line 103 "ael.flex" +#line 110 "ael.flex" { STORE_POS; return KW_SWITCH;} YY_BREAK case 20: YY_RULE_SETUP -#line 104 "ael.flex" +#line 111 "ael.flex" { STORE_POS; return KW_IF;} YY_BREAK case 21: YY_RULE_SETUP -#line 105 "ael.flex" +#line 112 "ael.flex" { STORE_POS; return KW_IFTIME;} YY_BREAK case 22: YY_RULE_SETUP -#line 106 "ael.flex" +#line 113 "ael.flex" { STORE_POS; return KW_RANDOM;} YY_BREAK case 23: YY_RULE_SETUP -#line 107 "ael.flex" +#line 114 "ael.flex" { STORE_POS; return KW_REGEXTEN;} YY_BREAK case 24: YY_RULE_SETUP -#line 108 "ael.flex" +#line 115 "ael.flex" { STORE_POS; return KW_HINT;} YY_BREAK case 25: YY_RULE_SETUP -#line 109 "ael.flex" +#line 116 "ael.flex" { STORE_POS; return KW_ELSE;} YY_BREAK case 26: YY_RULE_SETUP -#line 110 "ael.flex" +#line 117 "ael.flex" { STORE_POS; return KW_GOTO;} YY_BREAK case 27: YY_RULE_SETUP -#line 111 "ael.flex" +#line 118 "ael.flex" { STORE_POS; return KW_JUMP;} YY_BREAK case 28: YY_RULE_SETUP -#line 112 "ael.flex" +#line 119 "ael.flex" { STORE_POS; return KW_RETURN;} YY_BREAK case 29: YY_RULE_SETUP -#line 113 "ael.flex" +#line 120 "ael.flex" { STORE_POS; return KW_BREAK;} YY_BREAK case 30: YY_RULE_SETUP -#line 114 "ael.flex" +#line 121 "ael.flex" { STORE_POS; return KW_CONTINUE;} YY_BREAK case 31: YY_RULE_SETUP -#line 115 "ael.flex" +#line 122 "ael.flex" { STORE_POS; return KW_FOR;} YY_BREAK case 32: YY_RULE_SETUP -#line 116 "ael.flex" +#line 123 "ael.flex" { STORE_POS; return KW_WHILE;} YY_BREAK case 33: YY_RULE_SETUP -#line 117 "ael.flex" +#line 124 "ael.flex" { STORE_POS; return KW_CASE;} YY_BREAK case 34: YY_RULE_SETUP -#line 118 "ael.flex" +#line 125 "ael.flex" { STORE_POS; return KW_DEFAULT;} YY_BREAK case 35: YY_RULE_SETUP -#line 119 "ael.flex" +#line 126 "ael.flex" { STORE_POS; return KW_PATTERN;} YY_BREAK case 36: YY_RULE_SETUP -#line 120 "ael.flex" +#line 127 "ael.flex" { STORE_POS; return KW_CATCH;} YY_BREAK case 37: YY_RULE_SETUP -#line 121 "ael.flex" +#line 128 "ael.flex" { STORE_POS; return KW_SWITCHES;} YY_BREAK case 38: YY_RULE_SETUP -#line 122 "ael.flex" +#line 129 "ael.flex" { STORE_POS; return KW_ESWITCHES;} YY_BREAK case 39: YY_RULE_SETUP -#line 123 "ael.flex" +#line 130 "ael.flex" { STORE_POS; return KW_INCLUDES;} YY_BREAK case 40: /* rule 40 can match eol */ YY_RULE_SETUP -#line 125 "ael.flex" +#line 132 "ael.flex" { my_lineno++; my_col = 0; } YY_BREAK case 41: YY_RULE_SETUP -#line 126 "ael.flex" +#line 133 "ael.flex" { my_col += yyleng; } YY_BREAK case 42: YY_RULE_SETUP -#line 127 "ael.flex" +#line 134 "ael.flex" { my_col += 8-(my_col%8); } YY_BREAK case 43: YY_RULE_SETUP -#line 129 "ael.flex" +#line 136 "ael.flex" { STORE_POS; yylval->str = strdup(yytext); - /* printf("\nGot WORD %s[%d][%d:%d]\n", - yylval->str, my_lineno ,yylloc->first_column,yylloc->last_column ); */ prev_word = yylval->str; return word; } @@ -1251,7 +1256,7 @@ YY_RULE_SETUP case 44: /* rule 44 can match eol */ YY_RULE_SETUP -#line 141 "ael.flex" +#line 146 "ael.flex" { yylloc->first_line = my_lineno; yylloc->first_column=my_col; @@ -1284,7 +1289,7 @@ YY_RULE_SETUP case 45: /* rule 45 can match eol */ YY_RULE_SETUP -#line 170 "ael.flex" +#line 175 "ael.flex" { char c = yytext[yyleng-1]; yylloc->first_line = my_lineno; @@ -1298,7 +1303,7 @@ YY_RULE_SETUP case 46: /* rule 46 can match eol */ YY_RULE_SETUP -#line 180 "ael.flex" +#line 185 "ael.flex" { char c = yytext[yyleng-1]; yylloc->first_line = my_lineno; @@ -1319,7 +1324,7 @@ YY_RULE_SETUP case 47: /* rule 47 can match eol */ YY_RULE_SETUP -#line 197 "ael.flex" +#line 202 "ael.flex" { char c = yytext[yyleng-1]; /* printf("ARGG:%s\n",yytext); */ @@ -1335,7 +1340,7 @@ YY_RULE_SETUP case 48: /* rule 48 can match eol */ YY_RULE_SETUP -#line 209 "ael.flex" +#line 214 "ael.flex" { /* printf("ARGG:%s\n",yytext); */ yylloc->first_line = my_lineno; @@ -1377,7 +1382,7 @@ YY_RULE_SETUP case 49: /* rule 49 can match eol */ YY_RULE_SETUP -#line 247 "ael.flex" +#line 252 "ael.flex" { /* printf("ARGG:%s\n",yytext); */ if( parencount != 0) { @@ -1414,7 +1419,7 @@ YY_RULE_SETUP case 50: /* rule 50 can match eol */ YY_RULE_SETUP -#line 280 "ael.flex" +#line 285 "ael.flex" { char c = yytext[yyleng-1]; /*printf("ARGG:%s\n",yytext);*/ @@ -1435,7 +1440,7 @@ YY_RULE_SETUP case 51: /* rule 51 can match eol */ YY_RULE_SETUP -#line 299 "ael.flex" +#line 304 "ael.flex" { char c = yytext[yyleng-1]; /*printf("SEMIC:%s\n",yytext);*/ @@ -1448,7 +1453,7 @@ YY_RULE_SETUP case 52: /* rule 52 can match eol */ YY_RULE_SETUP -#line 308 "ael.flex" +#line 313 "ael.flex" { char c = yytext[yyleng-1]; /*printf("SEMIC:%s\n",yytext);*/ @@ -1469,7 +1474,7 @@ YY_RULE_SETUP case 53: /* rule 53 can match eol */ YY_RULE_SETUP -#line 325 "ael.flex" +#line 330 "ael.flex" { yylloc->first_line = my_lineno; yylloc->first_column=my_col; @@ -1488,7 +1493,7 @@ YY_RULE_SETUP case 54: /* rule 54 can match eol */ YY_RULE_SETUP -#line 340 "ael.flex" +#line 345 "ael.flex" { FILE *in1; char fnamebuf[1024],*p1,*p2; @@ -1555,7 +1560,7 @@ case YY_STATE_EOF(INITIAL): case YY_STATE_EOF(paren): case YY_STATE_EOF(semic): case YY_STATE_EOF(argg): -#line 402 "ael.flex" +#line 407 "ael.flex" { if ( --include_stack_index < 0 ) { yyterminate(); @@ -1571,10 +1576,10 @@ case YY_STATE_EOF(argg): YY_BREAK case 55: YY_RULE_SETUP -#line 415 "ael.flex" +#line 420 "ael.flex" ECHO; YY_BREAK -#line 1578 "ael_lex.c" +#line 1583 "ael_lex.c" case YY_END_OF_BUFFER: { @@ -2704,7 +2709,7 @@ void ael_yyfree (void * ptr , yyscan_t yyscanner) #define YYTABLES_NAME "yytables" -#line 415 "ael.flex" +#line 420 "ael.flex" |