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viml/parser/expressions: Forbid dot or alpha characters after a float

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This is basically what Vim already does, in addition to forbidding floats should
there be a concat immediately before it.
This commit is contained in:
ZyX 2017-10-03 00:39:40 +03:00
parent 6168e1127c
commit 0bc4e22379
2 changed files with 15 additions and 12 deletions
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6
src/nvim/viml/parser/expressions.c
View File

@ -186,6 +186,7 @@ LexExprToken viml_pexpr_next_token(ParserState *const pstate, const int flags)
ret.data.num.is_float = false;
CHARREG(kExprLexNumber, ascii_isdigit);
if (flags & kELFlagAllowFloat) {
const LexExprToken non_float_ret = ret;
if (pline.size > ret.len + 1
&& pline.data[ret.len] == '.'
&& ascii_isdigit(pline.data[ret.len + 1])) {
@ -207,6 +208,11 @@ LexExprToken viml_pexpr_next_token(ParserState *const pstate, const int flags)
CHARREG(kExprLexNumber, ascii_isdigit);
}
}
if (pline.size > ret.len
&& (pline.data[ret.len] == '.'
|| ASCII_ISALPHA(pline.data[ret.len]))) {
ret = non_float_ret;
}
}
break;
}

21
test/unit/viml/expressions/lexer_spec.lua
View File

@ -264,6 +264,15 @@ describe('Expressions lexer', function()
simple_test({''}, 'EOC', 0, {error='start.col >= #pstr'})
simple_test({'2.'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.x'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.2.'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0x'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e+'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e-'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e+x'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e-x'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e+1a'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e-1a'}, 'Number', 1, {data={is_float=false}, str='2'})
end
local function regular_scope_tests()
@ -296,12 +305,6 @@ describe('Expressions lexer', function()
local function regular_number_tests()
simple_test({'2.0'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0x'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e+'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e-'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e+x'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e-x'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e5'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e+5'}, 'Number', 1, {data={is_float=false}, str='2'})
simple_test({'2.0e-5'}, 'Number', 1, {data={is_float=false}, str='2'})
@ -350,12 +353,6 @@ describe('Expressions lexer', function()
regular_is_tests()
simple_test({'2.0'}, 'Number', 3, {data={is_float=true}, str='2.0'})
simple_test({'2.0x'}, 'Number', 3, {data={is_float=true}, str='2.0'})
simple_test({'2.0e'}, 'Number', 3, {data={is_float=true}, str='2.0'})
simple_test({'2.0e+'}, 'Number', 3, {data={is_float=true}, str='2.0'})
simple_test({'2.0e-'}, 'Number', 3, {data={is_float=true}, str='2.0'})
simple_test({'2.0e+x'}, 'Number', 3, {data={is_float=true}, str='2.0'})
simple_test({'2.0e-x'}, 'Number', 3, {data={is_float=true}, str='2.0'})
simple_test({'2.0e5'}, 'Number', 5, {data={is_float=true}, str='2.0e5'})
simple_test({'2.0e+5'}, 'Number', 6, {data={is_float=true}, str='2.0e+5'})
simple_test({'2.0e-5'}, 'Number', 6, {data={is_float=true}, str='2.0e-5'})