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warnings: simplify the m4 interface

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* data/bison.m4 (error_at): Replace...
(error): this.
(b4_warn, b4_complain, b4_fatal): Bounce to their _at equivalent,
with empty location.
* src/scan-skel.l (at_directive_perform): Simplify accordingly.
This commit is contained in:
Akim Demaille
2012-10-01 16:47:50 +02:00
parent 20964c33f9
commit c4e3a1622d
2 changed files with 29 additions and 45 deletions
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56
data/bison.m4
View File

@@ -82,30 +82,16 @@ _m4eof
])dnl
m4_if(m4_sysval, [0], [], [m4_fatal([$0: cannot write to stdout])])])
# b4_error(KIND, FORMAT, [ARG1], [ARG2], ...)
# -------------------------------------------
# Write @KIND(FORMAT@,ARG1@,ARG2@,...@) to stdout.
# b4_error(KIND, START, END, FORMAT, [ARG1], [ARG2], ...)
# -------------------------------------------------------
# Write @KIND(START@,END@,FORMAT@,ARG1@,ARG2@,...@) to stdout.
#
# For example:
#
# b4_error([[warn]], [[invalid value for '%s': %s]], [[foo]], [[3]])
# b4_error([[complain]], [[input.y:2.3]], [[input.y:5.4]],
# [[invalid %s]], [[foo]])
m4_define([b4_error],
[b4_cat([[@]$1[(]$2[]]dnl
[m4_if([$#], [2], [],
[m4_foreach([b4_arg],
m4_dquote(m4_shift(m4_shift($@))),
[[@,]b4_arg])])[@)]])])
# b4_error_at(KIND, START, END, FORMAT, [ARG1], [ARG2], ...)
# ----------------------------------------------------------
# Write @KIND_at(START@,END@,FORMAT@,ARG1@,ARG2@,...@) to stdout.
#
# For example:
#
# b4_error_at([[complain]], [[input.y:2.3]], [[input.y:5.4]],
# [[invalid %s]], [[foo]])
m4_define([b4_error_at],
[b4_cat([[@]$1[_at(]$2[@,]$3[@,]$4[]]dnl
[b4_cat([[@]$1[(]$2[@,]$3[@,]$4[]]dnl
[m4_if([$#], [4], [],
[m4_foreach([b4_arg],
m4_dquote(m4_shift(m4_shift(m4_shift(m4_shift($@))))),
@@ -125,21 +111,21 @@ m4_define([b4_error_at],
# m4_define([asdf], [ASDF])
# m4_define([fsa], [FSA])
# m4_define([fdsa], [FDSA])
# b4_warn([[[asdf), asdf]]], [[[fsa), fsa]]], [[[fdsa), fdsa]]])
# b4_warn([[asdf), asdf]], [[fsa), fsa]], [[fdsa), fdsa]])
# b4_warn()
# b4_warn(1)
# b4_warn(1, 2)
# b4_warn_at([[[asdf), asdf]]], [[[fsa), fsa]]], [[[fdsa), fdsa]]])
# b4_warn_at([[asdf), asdf]], [[fsa), fsa]], [[fdsa), fdsa]])
# b4_warn_at()
# b4_warn_at(1)
# b4_warn_at(1, 2)
#
# Should produce this without newlines:
#
# @warn([asdf), asdf]@,[fsa), fsa]@,[fdsa), fdsa]@)
# @warn(asdf), asdf@,fsa), fsa@,fdsa), fdsa@)
# @warn_at([asdf), asdf]@,@,@,[fsa), fsa]@,[fdsa), fdsa]@)
# @warn(asdf), asdf@,@,@,fsa), fsa@,fdsa), fdsa@)
# @warn(@)
# @warn(1@)
# @warn(1@,2@)
m4_define([b4_warn],
[b4_error([[warn]], $@)])
[b4_error([[warn]], [], [], $@)])
# b4_warn_at(START, END, FORMAT, [ARG1], [ARG2], ...)
# ---------------------------------------------------
@@ -149,15 +135,15 @@ m4_define([b4_warn],
#
# b4_warn_at([[input.y:2.3]], [[input.y:5.4]], [[invalid %s]], [[foo]])
m4_define([b4_warn_at],
[b4_error_at([[warn]], $@)])
[b4_error([[warn]], $@)])
# b4_complain(FORMAT, [ARG1], [ARG2], ...)
# ----------------------------------------
# Write @complain(FORMAT@,ARG1@,ARG2@,...@) to stdout.
# Bounce to b4_complain_at.
#
# See b4_warn example.
m4_define([b4_complain],
[b4_error([[complain]], $@)])
[b4_error([[complain]], [], [], $@)])
# b4_complain_at(START, END, FORMAT, [ARG1], [ARG2], ...)
# -------------------------------------------------------
@@ -165,15 +151,15 @@ m4_define([b4_complain],
#
# See b4_warn_at example.
m4_define([b4_complain_at],
[b4_error_at([[complain]], $@)])
[b4_error([[complain]], $@)])
# b4_fatal(FORMAT, [ARG1], [ARG2], ...)
# -------------------------------------
# Write @fatal(FORMAT@,ARG1@,ARG2@,...@) to stdout and exit.
# Bounce to b4_fatal_at.
#
# See b4_warn example.
m4_define([b4_fatal],
[b4_error([[fatal]], $@)dnl
[b4_error([[fatal]], [], [], $@)dnl
m4_exit(1)])
# b4_fatal_at(START, END, FORMAT, [ARG1], [ARG2], ...)
@@ -182,7 +168,7 @@ m4_exit(1)])
#
# See b4_warn_at example.
m4_define([b4_fatal_at],
[b4_error_at([[fatal]], $@)dnl
[b4_error([[fatal]], $@)dnl
m4_exit(1)])

18
src/scan-skel.l
View File

@@ -186,25 +186,23 @@ at_directive_perform (int argc, char *argv[], char **outnamep, int *out_linenop)
fail_for_at_directive_too_many_args (argv[0]);
fputs (last_component (argv[1]), yyout);
}
else if (STREQ (argv[0], "@warn") || STREQ (argv[0], "@warn_at")
|| STREQ (argv[0], "@complain") || STREQ (argv[0], "@complain_at")
|| STREQ (argv[0], "@fatal") || STREQ (argv[0], "@fatal_at"))
else if (STREQ (argv[0], "@warn")
|| STREQ (argv[0], "@complain")
|| STREQ (argv[0], "@fatal"))
{
warnings w = flag (*argv);
location loc;
location *locp = NULL;
if (STREQ (*argv + strlen (*argv) - 3, "_at"))
if (argc < 4)
fail_for_at_directive_too_few_args (argv[0]);
if (argv[1] && argv[1][0])
{
if (argc < 4)
fail_for_at_directive_too_few_args (argv[0]);
boundary_set_from_string (&loc.start, argv[1]);
boundary_set_from_string (&loc.end, argv[2]);
argc -= 2;
argv += 2;
locp = &loc;
}
else if (argc < 2)
fail_for_at_directive_too_few_args (argv[0]);
argc -= 2;
argv += 2;
complain_args (locp, w, argc, argv);
}
else if (STREQ (argv[0], "@output"))