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5789f9d91e
Let's use GNU readline and its TAB autocompletion to demonstrate the use of yyexpected_tokens. This shows a number of weaknesses in our current approach: - some macros (yyssp, etc.) from push parsers "leak" in user code, we need to undefine them - the context needed by yyexpected_tokens does not need the token, yypstate actually suffices - yypstate is not properly setup when first allocated, which results in a crash of yyexpected_tokens if fired before a first token was read. We should move initialization from yypush_parse into yypstate_new. * examples/c/bistromathic/parse.y (yylex): Take input as a string, not a file. (EXIT): New token. (input): Adjust to work only on a line. (line): Remove. (symbol_count, process_line, expected_tokens, completion) (init_readline): New. * examples/c/bistromathic/bistromathic.test: Adjust expectations.
35 lines
1.2 KiB
Makefile
35 lines
1.2 KiB
Makefile
## Copyright (C) 2020 Free Software Foundation, Inc.
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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bistromathicdir = $(docdir)/%D%
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## --------------- ##
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## Bistromathics. ##
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## --------------- ##
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check_PROGRAMS += %D%/bistromathic
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TESTS += %D%/bistromathic.test
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EXTRA_DIST += %D%/bistromathic.test
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nodist_%C%_bistromathic_SOURCES = %D%/parse.y %D%/parse.h
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%D%/calc.c: $(dependencies)
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# Don't use gnulib's system headers.
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%C%_bistromathic_CPPFLAGS = -I$(top_srcdir)/%D% -I$(top_builddir)/%D%
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%C%_bistromathic_LDADD = -lm -lreadline
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dist_bistromathic_DATA = %D%/parse.y %D%/Makefile %D%/README.md
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CLEANFILES += %D%/parse.[ch] %D%/parse.output
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CLEANDIRS += %D%/*.dSYM
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