diff options
Diffstat (limited to 'grammar/rscript.l')
| -rw-r--r-- | grammar/rscript.l | 60 |
1 files changed, 42 insertions, 18 deletions
diff --git a/grammar/rscript.l b/grammar/rscript.l index dd86fbe9..b5d23d7a 100644 --- a/grammar/rscript.l +++ b/grammar/rscript.l @@ -1,41 +1,65 @@ %option noyywrap nodefault case-insensitive /*%option noyywrap nodefault case-insensitive */ -%x OLDACT - /* old-style action expected -- need to parse differently */ +%x INOBJ + /* INOBJ is selected if we are inside an object (name/value pairs!) */ %{ #include <libestr.h> %} %% - -\$[a-z]+.*$ { printf("CFSYSLINE: '%s'\n", yytext); } - +"global"[ \n\t]*"(" { printf("OBJ GLOBAL begin\n"); + BEGIN INOBJ; + } +"input"[ \n\t]*"(" { printf("OBJ INPUT begin\n"); + BEGIN INOBJ; + } +"module"[ \n\t]*"(" { printf("OBJ MODULE begin\n"); + BEGIN INOBJ; + } +"action"[ \n\t]*"(" { printf("OBJ ACTION begin\n"); + BEGIN INOBJ; + } ^[ \t]*:\$?[a-z]+[ ]*,[ ]*!?[a-z]+[ ]*,[ ]*\".*\" { printf("PROP-FILT: '%s'\n", yytext); - BEGIN OLDACT; + /*BEGIN OLDACT;*/ } ^[ \t]*[,\*a-z]+\.[,!=;\.\*a-z]+ { printf("PRI-FILT: '%s'\n", yytext); - BEGIN OLDACT; + /*BEGIN OLDACT;*/ } - -#.*\n /* skip comments in input */ -.|\n { if(yytext[0] != '\n') printf("%s", yytext); } -<OLDACT>\* | -<OLDACT>-\/[^ \t\n]+ | -<OLDACT>\|[^ \t\n]+ | -<OLDACT>\/[^ \t\n]+ { printf("old style action: '%s'\n", yytext); - BEGIN INITIAL; +"*" | +[\|\.\/\-:][^\n]+ { printf("old style action: '%s'\n", yytext); + } + +<INOBJ>")" { printf("OBJ end\n"); + BEGIN INITIAL; + } +<INOBJ>[a-z][a-z0-9_]* { printf("INOBJ: name '%s'\n", yytext); + } +<INOBJ>"=" { printf("INOBJ: equals\n"); } -<OLDACT>[ \t\n] -<OLDACT>.|\n { printf("invalid sequence in OLDACT mode: %s\n", - yytext); +<INOBJ>[a-z0-9\.,_\+\-\/]* | +<INOBJ>\"([^"\\]|\\['"?\\abfnrtv]|\\[0-7]{1,3})*\" { + printf("INOBJ: value '%s'\n", yytext); + BEGIN INOBJ; } +<INOBJ>#.*\n /* skip comments in input */ +<INOBJ>[ \n\t] +<INOBJ>. { printf("INOBJ: invalid char '%s'\n", yytext); } + /* CFSYSLINE is valid in all modes */ +\$[a-z]+.*$ { printf("CFSYSLINE: '%s'\n", yytext); } +<INOBJ>\$[a-z]+.*$ { printf("CFSYSLINE: '%s'\n", yytext); } + +\#.*\n /* skip comments in input */ +[\n\t ] /* drop whitespace */ +. { printf("invalid char: %s\n", yytext); + } + /*<<EOF>> { printf("EOF reached\n"); }*/ %% int |