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Scanning: 1) rationalize end-of-input everywhere, 2) prevent infinite loop at end-of-input, 3) use positive chars.

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Fixes issue #25. (char 255 aliased to -1 and missing tests for end of input).

1) All layers of input scanning now share a single EndOfInput value.
This avoids translation of it across layers of encapsulation.

2) Some places looking for end of line were not stopping on EndOfInput.

3) Use of "char" for the input made char values > 127 be negative numbers.
This allowed for aliasing of 255 to -1, etc.  This is fixed by using
unsigned char.
This commit is contained in:
John Kessenich
2015-07-27 09:37:55 -06:00
parent 91b977e172
commit c777fc2c4c
15 changed files with 134 additions and 112 deletions
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Test/baseResults/cppNest.vert.out
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@@ -3,7 +3,7 @@ ERROR: 0:144: '#elif' : #elif after #else
ERROR: 0:152: '#else' : #else after #else
ERROR: 0:161: '#elif' : #elif after #else
ERROR: 0:169: '#else' : #else after #else
ERROR: 0:177: 'macro expansion' : EOF in macro FUNC
ERROR: 0:177: 'macro expansion' : End of input in macro FUNC
ERROR: 0:178: '' : syntax error
ERROR: 6 compilation errors. No code generated.