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Diffstat (limited to 'Zend/zend_language_scanner.l')
-rw-r--r--Zend/zend_language_scanner.l74
1 files changed, 40 insertions, 34 deletions
diff --git a/Zend/zend_language_scanner.l b/Zend/zend_language_scanner.l
index d530b53430..948fe0c245 100644
--- a/Zend/zend_language_scanner.l
+++ b/Zend/zend_language_scanner.l
@@ -175,22 +175,23 @@ static void yy_scan_buffer(char *str, unsigned int len TSRMLS_DC)
void startup_scanner(TSRMLS_D)
{
CG(parse_error) = 0;
- CG(heredoc) = NULL;
- CG(heredoc_len) = 0;
CG(doc_comment) = NULL;
CG(doc_comment_len) = 0;
zend_stack_init(&SCNG(state_stack));
+ zend_ptr_stack_init(&SCNG(heredoc_label_stack));
+}
+
+static void heredoc_label_dtor(zend_heredoc_label *heredoc_label) {
+ efree(heredoc_label->label);
}
void shutdown_scanner(TSRMLS_D)
{
- if (CG(heredoc)) {
- efree(CG(heredoc));
- CG(heredoc_len)=0;
- }
CG(parse_error) = 0;
- zend_stack_destroy(&SCNG(state_stack));
RESET_DOC_COMMENT();
+ zend_stack_destroy(&SCNG(state_stack));
+ zend_ptr_stack_clean(&SCNG(heredoc_label_stack), (void (*)(void *)) &heredoc_label_dtor, 1);
+ zend_ptr_stack_destroy(&SCNG(heredoc_label_stack));
}
ZEND_API void zend_save_lexical_state(zend_lex_state *lex_state TSRMLS_DC)
@@ -205,6 +206,9 @@ ZEND_API void zend_save_lexical_state(zend_lex_state *lex_state TSRMLS_DC)
lex_state->state_stack = SCNG(state_stack);
zend_stack_init(&SCNG(state_stack));
+ lex_state->heredoc_label_stack = SCNG(heredoc_label_stack);
+ zend_ptr_stack_init(&SCNG(heredoc_label_stack));
+
lex_state->in = SCNG(yy_in);
lex_state->yy_state = YYSTATE;
lex_state->filename = zend_get_compiled_filename(TSRMLS_C);
@@ -231,6 +235,10 @@ ZEND_API void zend_restore_lexical_state(zend_lex_state *lex_state TSRMLS_DC)
zend_stack_destroy(&SCNG(state_stack));
SCNG(state_stack) = lex_state->state_stack;
+ zend_ptr_stack_clean(&SCNG(heredoc_label_stack), (void (*)(void *)) &heredoc_label_dtor, 1);
+ zend_ptr_stack_destroy(&SCNG(heredoc_label_stack));
+ SCNG(heredoc_label_stack) = lex_state->heredoc_label_stack;
+
SCNG(yy_in) = lex_state->in;
YYSETCONDITION(lex_state->yy_state);
CG(zend_lineno) = lex_state->lineno;
@@ -247,12 +255,6 @@ ZEND_API void zend_restore_lexical_state(zend_lex_state *lex_state TSRMLS_DC)
SCNG(input_filter) = lex_state->input_filter;
SCNG(output_filter) = lex_state->output_filter;
SCNG(script_encoding) = lex_state->script_encoding;
-
- if (CG(heredoc)) {
- efree(CG(heredoc));
- CG(heredoc) = NULL;
- CG(heredoc_len) = 0;
- }
}
ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle TSRMLS_DC)
@@ -2097,38 +2099,35 @@ inline_html:
<ST_IN_SCRIPTING>b?"<<<"{TABS_AND_SPACES}({LABEL}|([']{LABEL}['])|(["]{LABEL}["])){NEWLINE} {
char *s;
int bprefix = (yytext[0] != '<') ? 1 : 0;
-
- /* save old heredoc label */
- Z_STRVAL_P(zendlval) = CG(heredoc);
- Z_STRLEN_P(zendlval) = CG(heredoc_len);
+ zend_heredoc_label *heredoc_label = emalloc(sizeof(zend_heredoc_label));
CG(zend_lineno)++;
- CG(heredoc_len) = yyleng-bprefix-3-1-(yytext[yyleng-2]=='\r'?1:0);
+ heredoc_label->length = yyleng-bprefix-3-1-(yytext[yyleng-2]=='\r'?1:0);
s = yytext+bprefix+3;
while ((*s == ' ') || (*s == '\t')) {
s++;
- CG(heredoc_len)--;
+ heredoc_label->length--;
}
if (*s == '\'') {
s++;
- CG(heredoc_len) -= 2;
+ heredoc_label->length -= 2;
BEGIN(ST_NOWDOC);
} else {
if (*s == '"') {
s++;
- CG(heredoc_len) -= 2;
+ heredoc_label->length -= 2;
}
BEGIN(ST_HEREDOC);
}
- CG(heredoc) = estrndup(s, CG(heredoc_len));
+ heredoc_label->label = estrndup(s, heredoc_label->length);
/* Check for ending label on the next line */
- if (CG(heredoc_len) < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, s, CG(heredoc_len))) {
- YYCTYPE *end = YYCURSOR + CG(heredoc_len);
+ if (heredoc_label->length < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, s, heredoc_label->length)) {
+ YYCTYPE *end = YYCURSOR + heredoc_label->length;
if (*end == ';') {
end++;
@@ -2139,6 +2138,8 @@ inline_html:
}
}
+ zend_ptr_stack_push(&SCNG(heredoc_label_stack), (void *) heredoc_label);
+
return T_START_HEREDOC;
}
@@ -2150,13 +2151,14 @@ inline_html:
<ST_END_HEREDOC>{ANY_CHAR} {
- YYCURSOR += CG(heredoc_len) - 1;
- yyleng = CG(heredoc_len);
+ zend_heredoc_label *heredoc_label = zend_ptr_stack_pop(&SCNG(heredoc_label_stack));
+
+ YYCURSOR += heredoc_label->length - 1;
+ yyleng = heredoc_label->length;
+
+ heredoc_label_dtor(heredoc_label);
+ efree(heredoc_label);
- Z_STRVAL_P(zendlval) = CG(heredoc);
- Z_STRLEN_P(zendlval) = CG(heredoc_len);
- CG(heredoc) = NULL;
- CG(heredoc_len) = 0;
BEGIN(ST_IN_SCRIPTING);
return T_END_HEREDOC;
}
@@ -2276,6 +2278,8 @@ double_quotes_scan_done:
<ST_HEREDOC>{ANY_CHAR} {
int newline = 0;
+ zend_heredoc_label *heredoc_label = zend_ptr_stack_top(&SCNG(heredoc_label_stack));
+
if (YYCURSOR > YYLIMIT) {
return 0;
}
@@ -2291,8 +2295,8 @@ double_quotes_scan_done:
/* fall through */
case '\n':
/* Check for ending label on the next line */
- if (IS_LABEL_START(*YYCURSOR) && CG(heredoc_len) < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, CG(heredoc), CG(heredoc_len))) {
- YYCTYPE *end = YYCURSOR + CG(heredoc_len);
+ if (IS_LABEL_START(*YYCURSOR) && heredoc_label->length < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, heredoc_label->label, heredoc_label->length)) {
+ YYCTYPE *end = YYCURSOR + heredoc_label->length;
if (*end == ';') {
end++;
@@ -2348,6 +2352,8 @@ heredoc_scan_done:
<ST_NOWDOC>{ANY_CHAR} {
int newline = 0;
+ zend_heredoc_label *heredoc_label = zend_ptr_stack_top(&SCNG(heredoc_label_stack));
+
if (YYCURSOR > YYLIMIT) {
return 0;
}
@@ -2363,8 +2369,8 @@ heredoc_scan_done:
/* fall through */
case '\n':
/* Check for ending label on the next line */
- if (IS_LABEL_START(*YYCURSOR) && CG(heredoc_len) < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, CG(heredoc), CG(heredoc_len))) {
- YYCTYPE *end = YYCURSOR + CG(heredoc_len);
+ if (IS_LABEL_START(*YYCURSOR) && heredoc_label->length < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, heredoc_label->label, heredoc_label->length)) {
+ YYCTYPE *end = YYCURSOR + heredoc_label->length;
if (*end == ';') {
end++;
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