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-rw-r--r--server/src/parser/ast.lua167
-rw-r--r--server/src/parser/grammar.lua28
2 files changed, 176 insertions, 19 deletions
diff --git a/server/src/parser/ast.lua b/server/src/parser/ast.lua
index 80f82c82..8a1c7024 100644
--- a/server/src/parser/ast.lua
+++ b/server/src/parser/ast.lua
@@ -252,18 +252,66 @@ local Defs = {
[1] = false,
}
end,
- LongComment = function (beforeEq, afterEq, missPos)
+ LongComment = function (beforeEq, afterEq, str, missPos)
if missPos then
+ local endSymbol = ']' .. ('='):rep(afterEq-beforeEq) .. ']'
+ local s, _, w = str:find('(%][%=]*%])[%c%s]*$')
+ if s then
+ pushError {
+ type = 'ERR_LCOMMENT_END',
+ start = missPos - #str + s - 1,
+ finish = missPos - #str + s + #w - 2,
+ info = {
+ symbol = endSymbol,
+ },
+ fix = {
+ title = 'FIX_LCOMMENT_END',
+ {
+ start = missPos - #str + s - 1,
+ finish = missPos - #str + s + #w - 2,
+ text = endSymbol,
+ }
+ },
+ }
+ end
pushError {
type = 'MISS_SYMBOL',
start = missPos,
finish = missPos,
info = {
- symbol = ']' .. ('='):rep(afterEq-beforeEq) .. ']'
- }
+ symbol = endSymbol,
+ },
+ fix = {
+ title = 'ADD_LCOMMENT_END',
+ {
+ start = missPos,
+ finish = missPos,
+ text = endSymbol,
+ }
+ },
}
end
end,
+ CLongComment = function (start1, finish1, start2, finish2)
+ pushError {
+ type = 'ERR_C_LONG_COMMENT',
+ start = start1,
+ finish = finish2 - 1,
+ fix = {
+ title = 'FIX_C_LONG_COMMENT',
+ {
+ start = start1,
+ finish = finish1 - 1,
+ text = '--[[',
+ },
+ {
+ start = start2,
+ finish = finish2 - 1,
+ text = '--]]'
+ },
+ }
+ }
+ end,
CCommentPrefix = function (start, finish)
pushError {
type = 'ERR_COMMENT_PREFIX',
@@ -273,7 +321,7 @@ local Defs = {
title = 'FIX_COMMENT_PREFIX',
{
start = start,
- finish = finish,
+ finish = finish - 1,
text = '--',
},
}
@@ -291,13 +339,41 @@ local Defs = {
end,
LongString = function (beforeEq, afterEq, str, missPos)
if missPos then
+ local endSymbol = ']' .. ('='):rep(afterEq-beforeEq) .. ']'
+ local s, _, w = str:find('(%][%=]*%])[%c%s]*$')
+ if s then
+ pushError {
+ type = 'ERR_LSTRING_END',
+ start = missPos - #str + s - 1,
+ finish = missPos - #str + s + #w - 2,
+ info = {
+ symbol = endSymbol,
+ },
+ fix = {
+ title = 'FIX_LSTRING_END',
+ {
+ start = missPos - #str + s - 1,
+ finish = missPos - #str + s + #w - 2,
+ text = endSymbol,
+ }
+ },
+ }
+ end
pushError {
type = 'MISS_SYMBOL',
start = missPos,
finish = missPos,
info = {
- symbol = ']' .. ('='):rep(afterEq-beforeEq) .. ']'
- }
+ symbol = endSymbol,
+ },
+ fix = {
+ title = 'ADD_LSTRING_END',
+ {
+ start = missPos,
+ finish = missPos,
+ text = endSymbol,
+ }
+ },
}
end
return '[' .. ('='):rep(afterEq-beforeEq) .. '[', str
@@ -1693,7 +1769,84 @@ local Defs = {
symbol = '>'
}
}
- end
+ end,
+ ErrAssign = function (start, finish)
+ pushError {
+ type = 'ERR_ASSIGN_AS_EQ',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_ASSIGN_AS_EQ',
+ {
+ start = start,
+ finish = finish - 1,
+ text = '=',
+ }
+ }
+ }
+ end,
+ ErrEQ = function (start, finish)
+ pushError {
+ type = 'ERR_EQ_AS_ASSIGN',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_EQ_AS_ASSIGN',
+ {
+ start = start,
+ finish = finish - 1,
+ text = '==',
+ }
+ }
+ }
+ return '=='
+ end,
+ ErrUEQ = function (start, finish)
+ pushError {
+ type = 'ERR_UEQ',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_UEQ',
+ {
+ start = start,
+ finish = finish - 1,
+ text = '~=',
+ }
+ }
+ }
+ return '=='
+ end,
+ ErrThen = function (start, finish)
+ pushError {
+ type = 'ERR_THEN_AS_DO',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_THEN_AS_DO',
+ {
+ start = start,
+ finish = finish - 1,
+ text = 'then',
+ }
+ }
+ }
+ end,
+ ErrDo = function (start, finish)
+ pushError {
+ type = 'ERR_DO_AS_THEN',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'ERR_DO_AS_THEN',
+ {
+ start = start,
+ finish = finish - 1,
+ text = 'do',
+ }
+ }
+ }
+ end,
}
return function (self, lua, mode, version)
diff --git a/server/src/parser/grammar.lua b/server/src/parser/grammar.lua
index 6e7a028e..36734174 100644
--- a/server/src/parser/grammar.lua
+++ b/server/src/parser/grammar.lua
@@ -92,11 +92,17 @@ local function errorpos(pos, err)
end
grammar 'Comment' [[
-Comment <- '--' (LongComment / ShortComment)
-LongComment <- ('[' {} {:eq: '='* :} {} '['
- (!CommentClose .)*
+Comment <- LongComment / '--' ShortComment
+LongComment <- ('--[' {} {:eq: '='* :} {} '['
+ {(!CommentClose .)*}
(CommentClose / {}))
-> LongComment
+ / (
+ {} '/*' {}
+ (!'*/' .)*
+ {} '*/' {}
+ )
+ -> CLongComment
CommentClose <- ']' =eq ']'
ShortComment <- (!%nl .)*
]]
@@ -115,6 +121,7 @@ Rest <- (!%nl .)*
AND <- Sp {'and'} Cut
BREAK <- Sp 'break' Cut
DO <- Sp 'do' Cut
+ / Sp ({} 'then' Cut {}) -> ErrDo
ELSE <- Sp 'else' Cut
ELSEIF <- Sp 'elseif' Cut
END <- Sp 'end' Cut
@@ -131,6 +138,7 @@ OR <- Sp {'or'} Cut
REPEAT <- Sp 'repeat' Cut
RETURN <- Sp 'return' Cut
THEN <- Sp 'then' Cut
+ / Sp ({} 'do' Cut {}) -> ErrThen
TRUE <- Sp 'true' Cut
UNTIL <- Sp 'until' Cut
WHILE <- Sp 'while' Cut
@@ -158,13 +166,6 @@ EChar <- 'a' -> ea
/ 'u{' Word* !'}' {} -> MissTR
/ {} -> ErrEsc
-Comp <- Sp {CompList}
-CompList <- '<='
- / '>='
- / '<'
- / '>'
- / '~='
- / '=='
BOR <- Sp {'|'}
BXOR <- Sp {'~'} !'='
BAND <- Sp {'&'}
@@ -190,6 +191,8 @@ POWER <- Sp {'^'}
BinaryOp <- Sp {} {'or'} Cut
/ Sp {} {'and'} Cut
/ Sp {} {'<=' / '>=' / '<'!'<' / '>'!'>' / '~=' / '=='}
+ / Sp {} ({} '=' {}) -> ErrEQ
+ / Sp {} ({} '!=' {}) -> ErrUEQ
/ Sp {} {'|'}
/ Sp {} {'~'}
/ Sp {} {'&'}
@@ -212,7 +215,8 @@ DOTS <- Sp ({} '...') -> DOTS
DOT <- Sp ({} '.' !'.') -> DOT
COLON <- Sp ({} ':' !':') -> COLON
LABEL <- Sp '::'
-ASSIGN <- Sp '='
+ASSIGN <- Sp ({} '==' {}) -> ErrAssign
+ / Sp '='
Nothing <- {} -> Nothing
@@ -400,7 +404,7 @@ Semicolon <- SEMICOLON
SimpleList <- (Simple (COMMA Simple)*)
-> List
-Do <- Sp ({} DO DoBody NeedEnd {})
+Do <- Sp ({} 'do' DoBody NeedEnd {})
-> Do
DoBody <- (Emmy / !END Action)*
-> DoBody