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author | Akim Demaille <akim@lrde.epita.fr> | 2012-07-26 11:19:18 +0200 |
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committer | Akim Demaille <akim@lrde.epita.fr> | 2012-07-26 12:30:02 +0200 |
commit | 13b712d7d492da45303f20502adcf6a8c5a7afa2 (patch) | |
tree | fe37780deccdd736f66f0f2da8df3ad1de4e0cd1 /src/system.h | |
parent | dba9149595b908562a3eead383c064ff5e9b2c02 (diff) | |
download | bison-13b712d7d492da45303f20502adcf6a8c5a7afa2.tar.gz |
obstack_escape: escape M4 characters
* src/muscle-tab.h (MUSCLE_OBSTACK_SGROW): This is not related to
muscles, so move to, and rename as...
* src/system.h (obstack_escape): this.
Adjust dependencies.
Diffstat (limited to 'src/system.h')
-rw-r--r-- | src/system.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/system.h b/src/system.h index 944907ec..06224596 100644 --- a/src/system.h +++ b/src/system.h @@ -192,6 +192,27 @@ typedef size_t uintptr_t; } while (0) +/* Output Str escaped for our postprocessing (i.e., escape M4 special + characters). + + For instance "[foo]" -> "@{foo@}", "$$" -> "$][$][". */ + +# define obstack_escape(Obs, Str) \ + do { \ + char const *p; \ + for (p = Str; *p; p++) \ + switch (*p) \ + { \ + case '$': obstack_sgrow (Obs, "$]["); break; \ + case '@': obstack_sgrow (Obs, "@@" ); break; \ + case '[': obstack_sgrow (Obs, "@{" ); break; \ + case ']': obstack_sgrow (Obs, "@}" ); break; \ + default: obstack_1grow (Obs, *p ); break; \ + } \ + } while (0) + + + /*-----------------------------------------. | Extensions to use for the output files. | |