diff options
Diffstat (limited to 'sapi/phpdbg/phpdbg_lexer.l')
-rw-r--r-- | sapi/phpdbg/phpdbg_lexer.l | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/sapi/phpdbg/phpdbg_lexer.l b/sapi/phpdbg/phpdbg_lexer.l new file mode 100644 index 0000000000..7b3ce38c47 --- /dev/null +++ b/sapi/phpdbg/phpdbg_lexer.l @@ -0,0 +1,169 @@ +/* + * phpdbg_lexer.l + */ + +#include "phpdbg.h" +#include "phpdbg_cmd.h" + +#include "phpdbg_parser.h" + +#define LEX(v) (PHPDBG_G(lexer).v) + +#define YYCTYPE unsigned char +#define YYSETCONDITION(x) LEX(state) = x; +#define YYGETCONDITION() LEX(state) +#define YYCURSOR LEX(cursor) +#define YYMARKER LEX(marker) +#define yyleng LEX(len) +#define yytext ((char*) LEX(text)) +#undef YYDEBUG +#define YYDEBUG(a, b) +#define YYFILL(n) + +#define NORMAL 0 +#define RAW 1 +#define INITIAL 2 + +ZEND_EXTERN_MODULE_GLOBALS(phpdbg); + +void phpdbg_init_lexer (phpdbg_param_t *stack, char *input TSRMLS_DC) { + PHPDBG_G(parser_stack) = stack; + + YYSETCONDITION(INITIAL); + + LEX(text) = YYCURSOR = (unsigned char *) input; + LEX(len) = strlen(input); +} + +int phpdbg_lex (phpdbg_param_t* yylval) { + TSRMLS_FETCH(); /* Slow, but this is not a major problem here. TODO: Use TSRMLS_DC */ + +restart: + LEX(text) = YYCURSOR; + +/*!re2c +re2c:yyfill:check = 0; +T_TRUE 'true' +T_YES 'yes' +T_ON 'on' +T_ENABLED 'enabled' +T_FALSE 'false' +T_NO 'no' +T_OFF 'off' +T_DISABLED 'disabled' +T_EVAL 'ev' +T_SHELL 'sh' +T_IF 'if' +T_RUN 'run' +T_RUN_SHORT "r" +WS [ \r\n\t]+ +DIGITS [-]?[0-9\.]+ +ID [^ \r\n\t:#\000]+ +ADDR [0][x][a-fA-F0-9]+ +OPCODE (ZEND_|zend_)([A-Za-z])+ +INPUT [^\n\000]+ + +<!*> := yyleng = (size_t) YYCURSOR - (size_t) yytext; + +<*>[\n\000] { + return 0; +} + +<NORMAL>{T_IF}{WS} { + YYSETCONDITION(RAW); + phpdbg_init_param(yylval, EMPTY_PARAM); + return T_IF; +} + +<NORMAL>{ID}[:]{1}[//]{2} { + phpdbg_init_param(yylval, STR_PARAM); + yylval->str = zend_strndup(yytext, yyleng); + yylval->len = yyleng; + return T_PROTO; +} +<NORMAL>[#]{1} { + return T_POUND; +} +<NORMAL>[:]{2} { + return T_DCOLON; +} +<NORMAL>[:]{1} { + return T_COLON; +} + +<NORMAL>({T_YES}|{T_ON}|{T_ENABLED}|{T_TRUE}){WS} { + phpdbg_init_param(yylval, NUMERIC_PARAM); + yylval->num = 1; + return T_TRUTHY; +} + +<NORMAL>({T_NO}|{T_OFF}|{T_DISABLED}|{T_FALSE}){WS} { + phpdbg_init_param(yylval, NUMERIC_PARAM); + yylval->num = 0; + return T_FALSY; +} + +<NORMAL>{DIGITS} { + phpdbg_init_param(yylval, NUMERIC_PARAM); + yylval->num = atoi(yytext); + return T_DIGITS; +} + +<NORMAL>{ADDR} { + phpdbg_init_param(yylval, ADDR_PARAM); + yylval->addr = strtoul(yytext, 0, 16); + return T_ADDR; +} + +<NORMAL>{OPCODE} { + phpdbg_init_param(yylval, OP_PARAM); + yylval->str = zend_strndup(yytext, yyleng); + yylval->len = yyleng; + return T_OPCODE; +} + +<NORMAL>{ID} { + phpdbg_init_param(yylval, STR_PARAM); + yylval->str = zend_strndup(yytext, yyleng); + yylval->len = yyleng; + return T_ID; +} + +<RAW>{INPUT} { + phpdbg_init_param(yylval, STR_PARAM); + yylval->str = zend_strndup(yytext, yyleng); + yylval->len = yyleng; + return T_INPUT; +} + +<*>{WS} { + /* ignore whitespace */ + + goto restart; +} + +<INITIAL>{T_EVAL}{WS} { + YYSETCONDITION(RAW); + phpdbg_init_param(yylval, EMPTY_PARAM); + return T_EVAL; +} +<INITIAL>{T_SHELL}{WS} { + YYSETCONDITION(RAW); + phpdbg_init_param(yylval, EMPTY_PARAM); + return T_SHELL; +} +<INITIAL>({T_RUN}|{T_RUN_SHORT}){WS} { + YYSETCONDITION(RAW); + phpdbg_init_param(yylval, EMPTY_PARAM); + return T_RUN; +} + +<INITIAL>. { + YYSETCONDITION(NORMAL); + + YYCURSOR = LEX(text); + goto restart; +} + +*/ +} |