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annotate TODO @ 203:3a25180d3a5c

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Abort on line numbering or column numbering overflow. Line numbers are limited to values that fit in "unsigned int". Also reject input lines longer than 2^32-1 characters. It seems reasonable to presume that any input that violates these constraints is someone screwing around and not a serious attempt to compile or preprocess anything useful. Done in response to n2129, but without getting into any of the silliness found there.
author David A. Holland
date Tue, 01 Aug 2017 14:51:04 -0400
parents 6947cd2cde79
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 not implemented:
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2 - mode.input_allow_dollars.
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3 - column counts do not take tabstops into account.
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4 - mode.output_linenumbers.
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5 - mode.do_depend.
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6 - mode.do_macrolist.
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7 - mode.do_trace.
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8 - warns.endiflabels. (they cause errors)
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9 - warns.unused.
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10 - the -iremap option.
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11 - $CPP_RESTRICTED
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12 - other environment variables
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13
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14 tidy up:
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15 - get rid of inlinedefs.h
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16 - use of places in and below macro.c is pretty bogus.
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17 - macro code should be reworked.
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18 - place_changefile is manky and wastes memory. Also, in an ideal
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19 world we'd remember the place #line changed the name and refer
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20 to it when printing errors.
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21
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22 fix:
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23 - "#if 0 && 1/0" should not crash; fix eval method.
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24 - quote characters and comment delimiters that are emitted by
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25 macros are not recognized. See:
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26 t34 (should produce a quote and FOO Q)
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27 t35 (similarly, this test may be redundant once it's fixed)
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28 t36 (C(3) should produce nothing)
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29 t37 (BC foo EC should produce nothing)
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30 Joerg says comments like in t36 should be stripped exactly
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31 twice, once when the macro is defined and again when it's
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32 expanded. Note that gcc's cpp -traditional is getting t37
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33 wrong, and it gets t36 wrong with -C.
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16b4451e34b8 Add the ability to output line numbers, sort of.
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34 - remove the intentionally undocumented -p option and generate
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35 proper linenumber output. (also, in this code what happens if
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36 a comment spans files? I bet currently it will emit the line
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37 number into the comment.)