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* data/c.m4 (b4_dirname): New.

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(b4_syncline): Also output the location of its invocation (from
the skeleton).
(b4_user_action, b4_define_user_action, b4_user_actions)
(b4_user_initial_action, b4_user_post_prologue,	b4_user_start_header)
(b4_user_stype): New.
* data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
This commit is contained in:
Akim Demaille
2006-07-08 14:24:56 +00:00
parent 4a678af8c6
commit 8ec0a172bc
8 changed files with 288 additions and 176 deletions
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42
data/c.m4
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@@ -403,12 +403,52 @@ m4_define([b4_c_arg],
## Synclines. ##
## ----------- ##
# b4_basename(NAME)
# -----------------
# Beware that NAME is not evaluated.
m4_define([b4_basename],
[m4_case([$1],
[/], [/],
[m4_bpatsubst([$1], [^.*/\([^/]+\)/?$], [\1])])])
# b4_syncline(LINE, FILE)
# -----------------------
m4_define([b4_syncline],
[b4_flag_if([synclines], [[#]line $1 $2])])
[b4_flag_if([synclines],
[/* Line __line__ of b4_basename(m4_quote(__file__)). */
[#]line $1 $2])])
# b4_user_code(USER-CODE)
# -----------------------
# Emit code from the user, ending it with synclines.
m4_define([b4_user_code],
[$1
b4_syncline([@oline@], [@ofile@])])
# b4_define_user_code(MACRO)
# --------------------------
# From b4_MACRO, build b4_user_MACRO that includes the synclines.
m4_define([b4_define_user_code],
[m4_define([b4_user_$1],
[b4_user_code([b4_$1])])])
# b4_user_actions
# b4_user_initial_action
# b4_user_post_prologue
# b4_user_start_header
# b4_user_stype
# ----------------------
# Macros that issue user code, ending with synclines.
b4_define_user_code([actions])
b4_define_user_code([initial_action])
b4_define_user_code([post_prologue])
b4_define_user_code([start_header])
b4_define_user_code([stype])
## -------------- ##
## User actions. ##