diff options
| author | Akim Demaille <akim.demaille@gmail.com> | 2021-01-31 21:28:58 +0100 |
|---|---|---|
| committer | Akim Demaille <akim.demaille@gmail.com> | 2021-02-09 06:48:00 +0100 |
| commit | 96b881094b114685413c63774117e5186627263a (patch) | |
| tree | 57eac02fa6cead5806f7ffae9e332dc7b9ca151c /examples | |
| parent | fdba54a961a01595f5461d38af6ff6426c74e165 (diff) | |
| download | bison-96b881094b114685413c63774117e5186627263a.tar.gz | |
examples: do not rely on YY_LOCATION_PRINT
* examples/c/bistromathic/parse.y (location_print): New.
Use it.
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/c/bistromathic/parse.y | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/examples/c/bistromathic/parse.y b/examples/c/bistromathic/parse.y index b772f1ba..ad025e66 100644 --- a/examples/c/bistromathic/parse.y +++ b/examples/c/bistromathic/parse.y @@ -94,6 +94,10 @@ // Emitted in the implementation file. %code { + // Print *LOC on OUT. + static void location_print (FILE *out, YYLTYPE const * const loc); + #define YY_LOCATION_PRINT(Out, Loc) location_print(Out, &(Loc)) + #if defined ENABLE_NLS && ENABLE_NLS # define _(Msgid) gettext (Msgid) #else @@ -269,6 +273,26 @@ symbol_count (void) } + +/*------------. +| Locations. | +`------------*/ + +// Print *LOC on OUT. Do it in a compact way, that avoids redundancy. + +static void +location_print (FILE *out, YYLTYPE const * const loc) +{ + fprintf (out, "%d.%d", loc->first_line, loc->first_column); + + int end_col = 0 != loc->last_column ? loc->last_column - 1 : 0; + if (loc->first_line < loc->last_line) + fprintf (out, "-%d.%d", loc->last_line, end_col); + else if (loc->first_column < end_col) + fprintf (out, "-%d", end_col); +} + + /*----------. | Scanner. | `----------*/ |