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author | Sergey Poznyakoff <gray@gnu.org> | 2018-06-04 11:11:20 +0300 |
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committer | Sergey Poznyakoff <gray@gnu.org> | 2018-06-04 11:11:20 +0300 |
commit | c3850a4d3f94436aab6b23020242bc99c71506ee (patch) | |
tree | 644cd582c39c833124d1d071a4b7738bac97428d /src | |
parent | 43a1c4ce04cf9301b88c8df31087fe84dcb7e232 (diff) | |
download | grecs-c3850a4d3f94436aab6b23020242bc99c71506ee.tar.gz grecs-c3850a4d3f94436aab6b23020242bc99c71506ee.tar.bz2 |
json: improve parser reentrability
* include/grecs/json.h (jsonlex_cleanup): New proto.
* src/json-lex.l (jsonlex_setup): Initialize parser state.
Initialize json_current_locus_point.file to a non-NULL value.
(jsonlex_cleanup): New function.
* src/json-gram.y (json_parse_string): Call jsonlex_cleanup before returning.
* src/diag.c (default_print_diag): Print the passed errcode argument,
instead of errno.
Diffstat (limited to 'src')
-rw-r--r-- | src/diag.c | 2 | ||||
-rw-r--r-- | src/json-gram.y | 1 | ||||
-rw-r--r-- | src/json-lex.l | 35 |
3 files changed, 25 insertions, 13 deletions
@@ -37,7 +37,7 @@ default_print_diag(grecs_locus_t const *locus, int err, int errcode, fprintf(stderr, "warning: "); fprintf(stderr, "%s", msg); if (errcode) - fprintf(stderr, ": %s", strerror(errno)); + fprintf(stderr, ": %s", strerror(errcode)); fputc('\n', stderr); } diff --git a/src/json-gram.y b/src/json-gram.y index fe8996b..d5b0248 100644 --- a/src/json-gram.y +++ b/src/json-gram.y @@ -280,6 +280,7 @@ json_parse_string(char const *input, size_t len) /* FIXME: error recovery */ return NULL; } + jsonlex_cleanup(); return json_return_obj; } diff --git a/src/json-lex.l b/src/json-lex.l index 169cf32..4bbdedf 100644 --- a/src/json-lex.l +++ b/src/json-lex.l @@ -55,18 +55,6 @@ struct grecs_locus json_err_locus; } while (0); void -jsonlex_setup(char const *s, size_t l) -{ - input_ptr = s; - input_size = l; - json_current_locus_point.file = NULL; - json_current_locus_point.line = 1; - json_current_locus_point.col = 0; - json_err_diag = NULL; - yy_flex_debug = 0; -} - -void jsonlex_diag(const char *s) { if (!json_err_diag) { @@ -227,3 +215,26 @@ false { yylval.b = 0; return T_BOOL; } \n grecs_locus_point_advance_line(json_current_locus_point); . { jsonlex_diag("bogus character"); return T_ERR; } +%% +void +jsonlex_setup(char const *s, size_t l) +{ + input_ptr = s; + input_size = l; + json_current_locus_point.file = "input"; + json_current_locus_point.line = 1; + json_current_locus_point.col = 0; + json_err_diag = NULL; + yy_flex_debug = 0; + BEGIN(INITIAL); + yyrestart(NULL); +} + +void +jsonlex_cleanup(void) +{ + if (json_line_acc) { + grecs_txtacc_free(json_line_acc); + json_line_acc = NULL; + } +} |