X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/e36ec1f41ffbe9f00db405c775201dbbc384c45c..ea9e670d728ac659e139434de31ea9306ecdd117:/data/bison.m4?ds=inline diff --git a/data/bison.m4 b/data/bison.m4 index c652b2ec..6f06266d 100644 --- a/data/bison.m4 +++ b/data/bison.m4 @@ -61,6 +61,30 @@ This special exception was added by the Free Software Foundation in version 2.2 of Bison.])]) +## -------- ## +## Output. ## +## -------- ## + +# b4_output_begin(FILE) +# --------------------- +# Enable output, i.e., send to diversion 0, expand after "#", and +# generate the tag to output into FILE. Must be followed by EOL. +m4_define([b4_output_begin], +[m4_changecom() +m4_divert_push(0)dnl +@output(m4_unquote([$1])@)@dnl +]) + + +# b4_output_end() +# --------------- +# Output nothing, restore # as comment character (no expansions after #). +m4_define([b4_output_end], +[m4_divert_pop(0) +m4_changecom([#]) +]) + + ## ---------------- ## ## Error handling. ## ## ---------------- ## @@ -805,6 +829,13 @@ b4_percent_define_if_define([parse.assert]) b4_percent_define_if_define([parse.trace]) b4_percent_define_if_define([variant]) +# b4_bison_locations_if([IF-TRUE]) +# -------------------------------- +# Expand IF-TRUE if using locations, and using the default location +# type. +m4_define([b4_bison_locations_if], +[b4_locations_if([b4_percent_define_ifdef([[api.location.type]], [], [$1])])]) + # b4_error_verbose_if([IF-ERRORS-ARE-VERBOSE], [IF-NOT]) # ------------------------------------------------------