static void parseModule (tokenInfo * const token)
{
tokenInfo *const name = newToken ();
const vhdlKind kind = isKeyword (token, KEYWORD_ENTITY) ?
VHDLTAG_ENTITY : VHDLTAG_COMPONENT;
Assert (isKeyword (token, KEYWORD_ENTITY) ||
isKeyword (token, KEYWORD_COMPONENT));
readToken (name);
if (kind == VHDLTAG_COMPONENT)
{
makeVhdlTag (name, VHDLTAG_COMPONENT);
skipToKeyword (KEYWORD_END);
fileSkipToCharacter (';');
}
else
{
readToken (token);
if (isKeyword (token, KEYWORD_IS))
{
makeVhdlTag (name, VHDLTAG_ENTITY);
skipToKeyword (KEYWORD_END);
fileSkipToCharacter (';');
}
}
deleteToken (name);
}
/* records */
static void parseKeywords (tokenInfo * const token, boolean local)
{
switch (token->keyword)
{
case KEYWORD_END:
fileSkipToCharacter (';');
break;
case KEYWORD_CONSTANT:
parseConstant (local);
break;
case KEYWORD_TYPE:
parseTypes (token);
break;
case KEYWORD_SUBTYPE:
parseTypes (token);
break;
case KEYWORD_ENTITY:
parseModule (token);
break;
case KEYWORD_COMPONENT:
parseModule (token);
break;
case KEYWORD_FUNCTION:
parseSubProgram (token);
break;
case KEYWORD_PROCEDURE:
parseSubProgram (token);
break;
case KEYWORD_PACKAGE:
parsePackage (token);
break;
default:
break;
}
}
static void parseRecord (tokenInfo * const token)
{
tokenInfo *const name = newToken ();
Assert (isKeyword (token, KEYWORD_RECORD));
readToken (name);
do
{
readToken (token); /* should be a colon */
fileSkipToCharacter (';');
makeVhdlTag (name, VHDLTAG_RECORD);
readToken (name);
}
while (!isKeyword (name, KEYWORD_END) && !isType (name, TOKEN_EOF));
fileSkipToCharacter (';');
deleteToken (name);
}
static void parseConstant (boolean local)
{
tokenInfo *const name = newToken ();
readToken (name);
if (local)
{
makeVhdlTag (name, VHDLTAG_LOCAL);
}
else
{
makeVhdlTag (name, VHDLTAG_CONSTANT);
}
fileSkipToCharacter (';');
deleteToken (name);
}
static void parseSubProgram (tokenInfo * const token)
{
tokenInfo *const name = newToken ();
boolean endSubProgram = FALSE;
const vhdlKind kind = isKeyword (token, KEYWORD_FUNCTION) ?
VHDLTAG_FUNCTION : VHDLTAG_PROCEDURE;
Assert (isKeyword (token, KEYWORD_FUNCTION) ||
isKeyword (token, KEYWORD_PROCEDURE));
readToken (name); /* the name of the function or procedure */
readToken (token);
if (isType (token, TOKEN_OPEN_PAREN))
{
skipToMatched (token);
}
if (kind == VHDLTAG_FUNCTION)
{
if (isKeyword (token, KEYWORD_RETURN))
{
/* Read datatype */
readToken (token);
while (! isKeyword (token, KEYWORD_IS) &&
! isType (token, TOKEN_SEMICOLON) &&
! isType (token, TOKEN_EOF))
{
readToken (token);
}
}
}
if (isType (token, TOKEN_SEMICOLON))
{
makeVhdlTag (name, VHDLTAG_PROTOTYPE);
}
else if (isKeyword (token, KEYWORD_IS))
{
if (kind == VHDLTAG_FUNCTION)
{
makeVhdlTag (name, VHDLTAG_FUNCTION);
do
{
readToken (token);
if (isKeyword (token, KEYWORD_END))
{
readToken (token);
endSubProgram = isKeywordOrIdent (token,
KEYWORD_FUNCTION, name->string);
fileSkipToCharacter (';');
}
else
{
if (isType (token, TOKEN_EOF))
{
endSubProgram = TRUE;
}
else
{
parseKeywords (token, TRUE);
}
}
} while (!endSubProgram);
}
else
{
makeVhdlTag (name, VHDLTAG_PROCEDURE);
do
{
readToken (token);
if (isKeyword (token, KEYWORD_END))
{
readToken (token);
endSubProgram = isKeywordOrIdent (token,
KEYWORD_PROCEDURE, name->string);
fileSkipToCharacter (';');
}
else
{
if (isType (token, TOKEN_EOF))
{
endSubProgram = TRUE;
}
else
{
parseKeywords (token, TRUE);
}
}
} while (!endSubProgram);
}
}
deleteToken (name);
}
static void readToken (tokenInfo * const token)
{
int c;
token->type = TOKEN_NONE;
token->keyword = KEYWORD_NONE;
vStringClear (token->string);
getNextChar:
do
{
c = fileGetc ();
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
}
while (c == '\t' || c == ' ' || c == '\n');
switch (c)
{
case EOF:
token->type = TOKEN_EOF;
break;
case '(':
token->type = TOKEN_OPEN_PAREN;
break;
case ')':
token->type = TOKEN_CLOSE_PAREN;
break;
case ';':
token->type = TOKEN_SEMICOLON;
break;
case '.':
token->type = TOKEN_PERIOD;
break;
case ',':
token->type = TOKEN_COMMA;
break;
case '\'': /* only single char are inside simple quotes */
break; /* or it is for attributes so we don't care */
case '"':
token->type = TOKEN_STRING;
parseString (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
case '-':
c = fileGetc ();
if (c == '-') /* start of a comment */
{
fileSkipToCharacter ('\n');
goto getNextChar;
}
else
{
if (!isspace (c))
fileUngetc (c);
token->type = TOKEN_OPERATOR;
}
break;
default:
if (!isIdentChar1 (c))
token->type = TOKEN_NONE;
else
{
parseIdentifier (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
token->keyword = analyzeToken (token->string, Lang_vhdl);
if (isKeyword (token, KEYWORD_NONE))
token->type = TOKEN_IDENTIFIER;
else
token->type = TOKEN_KEYWORD;
}
break;
}
}
static void readToken (tokenInfo *const token)
{
int c;
token->type = TOKEN_UNDEFINED;
token->keyword = KEYWORD_NONE;
vStringClear (token->string);
getNextChar:
do
{
c = fileGetc ();
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
}
while (c == '\t' || c == ' ' || c == '\n');
switch (c)
{
case EOF: longjmp (Exception, (int)ExceptionEOF); break;
case '(': token->type = TOKEN_OPEN_PAREN; break;
case ')': token->type = TOKEN_CLOSE_PAREN; break;
case ';': token->type = TOKEN_SEMICOLON; break;
case ',': token->type = TOKEN_COMMA; break;
case '.': token->type = TOKEN_PERIOD; break;
case ':': token->type = TOKEN_COLON; break;
case '{': token->type = TOKEN_OPEN_CURLY; break;
case '}': token->type = TOKEN_CLOSE_CURLY; break;
case '=': token->type = TOKEN_EQUAL_SIGN; break;
case '[': token->type = TOKEN_OPEN_SQUARE; break;
case ']': token->type = TOKEN_CLOSE_SQUARE; break;
case '?': token->type = TOKEN_QUESTION_MARK; break;
case '*': token->type = TOKEN_STAR; break;
case '\'':
case '"':
token->type = TOKEN_STRING;
parseString (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
case '\\':
/*
* All Tex tags start with a backslash.
* Check if the next character is an alpha character
* else it is not a potential tex tag.
*/
c = fileGetc ();
if (! isalpha (c))
fileUngetc (c);
else
{
parseIdentifier (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
token->keyword = analyzeToken (token->string, Lang_js);
if (isKeyword (token, KEYWORD_NONE))
token->type = TOKEN_IDENTIFIER;
else
token->type = TOKEN_KEYWORD;
}
break;
case '%':
fileSkipToCharacter ('\n'); /* % are single line comments */
goto getNextChar;
break;
default:
if (! isIdentChar (c))
token->type = TOKEN_UNDEFINED;
else
{
parseIdentifier (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
token->type = TOKEN_IDENTIFIER;
}
break;
}
}
static void readToken (tokenInfo *const token)
{
int c;
static tokenType lastTokenType = TOKEN_NONE;
boolean firstWhitespace = TRUE;
boolean whitespace;
token->type = TOKEN_NONE;
token->keyword = KEYWORD_NONE;
vStringClear (token->string);
getNextChar:
do
{
c = fileGetc ();
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
if (c == '\n' && (lastTokenType == TOKEN_IDENTIFIER ||
lastTokenType == TOKEN_STRING ||
lastTokenType == TOKEN_OTHER ||
lastTokenType == TOKEN_CLOSE_PAREN ||
lastTokenType == TOKEN_CLOSE_CURLY ||
lastTokenType == TOKEN_CLOSE_SQUARE))
{
c = ';'; // semicolon injection
}
whitespace = c == '\t' || c == ' ' || c == '\r' || c == '\n';
if (signature && whitespace && firstWhitespace && vStringLength (signature) < MAX_SIGNATURE_LENGTH)
{
firstWhitespace = FALSE;
vStringPut(signature, ' ');
}
}
while (whitespace);
switch (c)
{
case EOF:
token->type = TOKEN_EOF;
break;
case ';':
token->type = TOKEN_SEMICOLON;
break;
case '/':
{
boolean hasNewline = FALSE;
int d = fileGetc ();
switch (d)
{
case '/':
fileSkipToCharacter ('\n');
/* Line comments start with the
* character sequence // and
* continue through the next
* newline. A line comment acts
* like a newline. */
fileUngetc ('\n');
goto getNextChar;
case '*':
do
{
do
{
d = fileGetc ();
if (d == '\n')
{
hasNewline = TRUE;
}
} while (d != EOF && d != '*');
c = fileGetc ();
if (c == '/')
break;
else
fileUngetc (c);
} while (c != EOF && c != '\0');
fileUngetc (hasNewline ? '\n' : ' ');
goto getNextChar;
default:
token->type = TOKEN_OTHER;
fileUngetc (d);
break;
}
}
break;
case '"':
case '\'':
case '`':
token->type = TOKEN_STRING;
parseString (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
case '<':
{
int d = fileGetc ();
if (d == '-')
token->type = TOKEN_LEFT_ARROW;
else
{
fileUngetc (d);
token->type = TOKEN_OTHER;
}
}
break;
case '(':
token->type = TOKEN_OPEN_PAREN;
break;
case ')':
token->type = TOKEN_CLOSE_PAREN;
break;
case '{':
token->type = TOKEN_OPEN_CURLY;
break;
case '}':
token->type = TOKEN_CLOSE_CURLY;
break;
case '[':
token->type = TOKEN_OPEN_SQUARE;
break;
case ']':
token->type = TOKEN_CLOSE_SQUARE;
break;
case '*':
token->type = TOKEN_STAR;
break;
case '.':
token->type = TOKEN_DOT;
break;
case ',':
token->type = TOKEN_COMMA;
break;
default:
if (isStartIdentChar (c))
{
parseIdentifier (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
token->keyword = lookupKeyword (vStringValue (token->string), Lang_go);
if (isKeyword (token, KEYWORD_NONE))
token->type = TOKEN_IDENTIFIER;
else
token->type = TOKEN_KEYWORD;
}
else
token->type = TOKEN_OTHER;
break;
}
if (signature && vStringLength (signature) < MAX_SIGNATURE_LENGTH)
{
if (token->type == TOKEN_LEFT_ARROW)
vStringCatS(signature, "<-");
else if (token->type == TOKEN_STRING)
{
// only struct member annotations can appear in function prototypes
// so only `` type strings are possible
vStringPut(signature, '`');
vStringCat(signature, token->string);
vStringPut(signature, '`');
}
else if (token->type == TOKEN_IDENTIFIER || token->type == TOKEN_KEYWORD)
vStringCat(signature, token->string);
else if (c != EOF)
vStringPut(signature, c);
}
lastTokenType = token->type;
}
static void readToken (tokenInfo *const token)
{
int c;
token->type = TOKEN_UNDEFINED;
token->keyword = KEYWORD_NONE;
vStringClear (token->string);
getNextChar:
do
{
c = fileGetc ();
}
while (c == '\t' || c == ' ' || c == '\n');
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
switch (c)
{
case EOF: longjmp (Exception, (int)ExceptionEOF); break;
case '(': token->type = TOKEN_OPEN_PAREN; break;
case ')': token->type = TOKEN_CLOSE_PAREN; break;
case ';': token->type = TOKEN_SEMICOLON; break;
case ',': token->type = TOKEN_COMMA; break;
case '.': token->type = TOKEN_PERIOD; break;
case ':': token->type = TOKEN_COLON; break;
case '{': token->type = TOKEN_OPEN_CURLY; break;
case '}': token->type = TOKEN_CLOSE_CURLY; break;
case '=': token->type = TOKEN_EQUAL_SIGN; break;
case '[': token->type = TOKEN_OPEN_SQUARE; break;
case ']': token->type = TOKEN_CLOSE_SQUARE; break;
case '\'':
case '"':
token->type = TOKEN_STRING;
parseString (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
case '\\':
c = fileGetc ();
if (c != '\\' && c != '"' && !isspace (c))
fileUngetc (c);
token->type = TOKEN_CHARACTER;
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
case '/':
{
int d = fileGetc ();
if ( (d != '*') && /* is this the start of a comment? */
(d != '/') ) /* is a one line comment? */
{
fileUngetc (d);
switch (LastTokenType)
{
case TOKEN_CHARACTER:
case TOKEN_KEYWORD:
case TOKEN_IDENTIFIER:
case TOKEN_STRING:
case TOKEN_CLOSE_CURLY:
case TOKEN_CLOSE_PAREN:
case TOKEN_CLOSE_SQUARE:
token->type = TOKEN_FORWARD_SLASH;
break;
default:
token->type = TOKEN_REGEXP;
parseRegExp ();
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
}
}
else
{
if (d == '*')
{
do
{
fileSkipToCharacter ('*');
c = fileGetc ();
if (c == '/')
break;
else
fileUngetc (c);
} while (c != EOF && c != '\0');
goto getNextChar;
}
else if (d == '/') /* is this the start of a comment? */
{
fileSkipToCharacter ('\n');
goto getNextChar;
}
}
break;
}
default:
if (! isIdentChar (c))
token->type = TOKEN_UNDEFINED;
else
{
parseIdentifier (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
token->keyword = analyzeToken (token->string, Lang_js);
if (isKeyword (token, KEYWORD_NONE))
token->type = TOKEN_IDENTIFIER;
else
token->type = TOKEN_KEYWORD;
}
break;
}
LastTokenType = token->type;
}
static void readTokenFull (tokenInfo *const token, boolean include_newlines, vString *const repr)
{
int c;
int i;
boolean newline_encountered = FALSE;
/* if we've got a token held back, emit it */
if (NextToken)
{
copyToken (token, NextToken, FALSE);
deleteToken (NextToken);
NextToken = NULL;
return;
}
token->type = TOKEN_UNDEFINED;
token->keyword = KEYWORD_NONE;
vStringClear (token->string);
getNextChar:
i = 0;
do
{
c = fileGetc ();
if (include_newlines && (c == '\r' || c == '\n'))
newline_encountered = TRUE;
i++;
}
while (c == '\t' || c == ' ' || c == '\r' || c == '\n');
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
if (repr)
{
if (i > 1)
vStringPut (repr, ' ');
vStringPut (repr, c);
}
switch (c)
{
case EOF: token->type = TOKEN_EOF; break;
case '(': token->type = TOKEN_OPEN_PAREN; break;
case ')': token->type = TOKEN_CLOSE_PAREN; break;
case ';': token->type = TOKEN_SEMICOLON; break;
case ',': token->type = TOKEN_COMMA; break;
case '.': token->type = TOKEN_PERIOD; break;
case ':': token->type = TOKEN_COLON; break;
case '{': token->type = TOKEN_OPEN_CURLY; break;
case '}': token->type = TOKEN_CLOSE_CURLY; break;
case '=': token->type = TOKEN_EQUAL_SIGN; break;
case '[': token->type = TOKEN_OPEN_SQUARE; break;
case ']': token->type = TOKEN_CLOSE_SQUARE; break;
case '+':
case '-':
{
int d = fileGetc ();
if (d == c) /* ++ or -- */
token->type = TOKEN_POSTFIX_OPERATOR;
else
{
fileUngetc (d);
token->type = TOKEN_BINARY_OPERATOR;
}
break;
}
case '*':
case '%':
case '?':
case '>':
case '<':
case '^':
case '|':
case '&':
token->type = TOKEN_BINARY_OPERATOR;
break;
case '\'':
case '"':
token->type = TOKEN_STRING;
parseString (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
if (repr)
{
vStringCat (repr, token->string);
vStringPut (repr, c);
}
break;
case '`':
token->type = TOKEN_TEMPLATE_STRING;
parseTemplateString (token->string);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
if (repr)
{
vStringCat (repr, token->string);
vStringPut (repr, c);
}
break;
case '\\':
c = fileGetc ();
if (c != '\\' && c != '"' && !isspace (c))
fileUngetc (c);
token->type = TOKEN_CHARACTER;
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
case '/':
{
int d = fileGetc ();
if ( (d != '*') && /* is this the start of a comment? */
(d != '/') ) /* is a one line comment? */
{
fileUngetc (d);
switch (LastTokenType)
{
case TOKEN_CHARACTER:
case TOKEN_IDENTIFIER:
case TOKEN_STRING:
case TOKEN_TEMPLATE_STRING:
case TOKEN_CLOSE_CURLY:
case TOKEN_CLOSE_PAREN:
case TOKEN_CLOSE_SQUARE:
token->type = TOKEN_BINARY_OPERATOR;
break;
default:
token->type = TOKEN_REGEXP;
parseRegExp ();
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
}
}
else
{
if (repr) /* remove the / we added */
repr->buffer[--repr->length] = 0;
if (d == '*')
{
do
{
fileSkipToCharacter ('*');
c = fileGetc ();
if (c == '/')
break;
else
fileUngetc (c);
} while (c != EOF && c != '\0');
goto getNextChar;
}
else if (d == '/') /* is this the start of a comment? */
{
fileSkipToCharacter ('\n');
/* if we care about newlines, put it back so it is seen */
if (include_newlines)
fileUngetc ('\n');
goto getNextChar;
}
}
break;
}
case '#':
/* skip shebang in case of e.g. Node.js scripts */
if (token->lineNumber > 1)
token->type = TOKEN_UNDEFINED;
else if ((c = fileGetc ()) != '!')
{
fileUngetc (c);
token->type = TOKEN_UNDEFINED;
}
else
{
fileSkipToCharacter ('\n');
goto getNextChar;
}
break;
default:
if (! isIdentChar (c))
token->type = TOKEN_UNDEFINED;
else
{
parseIdentifier (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
token->keyword = analyzeToken (token->string, Lang_js);
if (isKeyword (token, KEYWORD_NONE))
token->type = TOKEN_IDENTIFIER;
else
token->type = TOKEN_KEYWORD;
if (repr && vStringLength (token->string) > 1)
vStringCatS (repr, vStringValue (token->string) + 1);
}
break;
}
if (include_newlines && newline_encountered)
{
/* This isn't strictly correct per the standard, but following the
* real rules means understanding all statements, and that's not
* what the parser currently does. What we do here is a guess, by
* avoiding inserting semicolons that would make the statement on
* the left or right obviously invalid. Hopefully this should not
* have false negatives (e.g. should not miss insertion of a semicolon)
* but might have false positives (e.g. it will wrongfully emit a
* semicolon sometimes, i.e. for the newline in "foo\n(bar)").
* This should however be mostly harmless as we only deal with
* newlines in specific situations where we know a false positive
* wouldn't hurt too bad. */
/* these already end a statement, so no need to duplicate it */
#define IS_STMT_SEPARATOR(t) ((t) == TOKEN_SEMICOLON || \
(t) == TOKEN_EOF || \
(t) == TOKEN_COMMA || \
(t) == TOKEN_CLOSE_CURLY || \
(t) == TOKEN_OPEN_CURLY)
/* these cannot be the start or end of a statement */
#define IS_BINARY_OPERATOR(t) ((t) == TOKEN_EQUAL_SIGN || \
(t) == TOKEN_COLON || \
(t) == TOKEN_PERIOD || \
(t) == TOKEN_BINARY_OPERATOR)
if (! IS_STMT_SEPARATOR(LastTokenType) &&
! IS_STMT_SEPARATOR(token->type) &&
! IS_BINARY_OPERATOR(LastTokenType) &&
! IS_BINARY_OPERATOR(token->type) &&
/* these cannot be followed by a semicolon */
! (LastTokenType == TOKEN_OPEN_PAREN ||
LastTokenType == TOKEN_OPEN_SQUARE))
{
/* hold the token... */
Assert (NextToken == NULL);
NextToken = newToken ();
copyToken (NextToken, token, FALSE);
/* ...and emit a semicolon instead */
token->type = TOKEN_SEMICOLON;
token->keyword = KEYWORD_NONE;
vStringClear (token->string);
if (repr)
vStringPut (token->string, '\n');
}
#undef IS_STMT_SEPARATOR
#undef IS_BINARY_OPERATOR
}
LastTokenType = token->type;
}
static void readToken (tokenInfo *const token)
{
int c;
static tokenType lastTokenType = TOKEN_NONE;
token->type = TOKEN_NONE;
token->keyword = KEYWORD_NONE;
vStringClear (token->string);
getNextChar:
do
{
c = fileGetc ();
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
if (c == '\n' && (lastTokenType == TOKEN_IDENTIFIER ||
lastTokenType == TOKEN_STRING ||
lastTokenType == TOKEN_OTHER ||
lastTokenType == TOKEN_CLOSE_PAREN ||
lastTokenType == TOKEN_CLOSE_CURLY ||
lastTokenType == TOKEN_CLOSE_SQUARE))
{
token->type = TOKEN_SEMICOLON;
goto done;
}
}
while (c == '\t' || c == ' ' || c == '\r' || c == '\n');
switch (c)
{
case EOF:
token->type = TOKEN_EOF;
break;
case ';':
token->type = TOKEN_SEMICOLON;
break;
case '/':
{
boolean hasNewline = FALSE;
int d = fileGetc ();
switch (d)
{
case '/':
fileSkipToCharacter ('\n');
/* Line comments start with the
* character sequence // and
* continue through the next
* newline. A line comment acts
* like a newline. */
fileUngetc ('\n');
goto getNextChar;
case '*':
do
{
do
{
d = fileGetc ();
if (d == '\n')
{
hasNewline = TRUE;
}
} while (d != EOF && d != '*');
c = fileGetc ();
if (c == '/')
break;
else
fileUngetc (c);
} while (c != EOF && c != '\0');
fileUngetc (hasNewline ? '\n' : ' ');
goto getNextChar;
default:
token->type = TOKEN_OTHER;
fileUngetc (d);
break;
}
}
break;
case '"':
case '\'':
case '`':
token->type = TOKEN_STRING;
parseString (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
break;
case '<':
{
int d = fileGetc ();
if (d == '-')
token->type = TOKEN_LEFT_ARROW;
else
{
fileUngetc (d);
token->type = TOKEN_OTHER;
}
}
break;
case '(':
token->type = TOKEN_OPEN_PAREN;
break;
case ')':
token->type = TOKEN_CLOSE_PAREN;
break;
case '{':
token->type = TOKEN_OPEN_CURLY;
break;
case '}':
token->type = TOKEN_CLOSE_CURLY;
break;
case '[':
token->type = TOKEN_OPEN_SQUARE;
break;
case ']':
token->type = TOKEN_CLOSE_SQUARE;
break;
case '*':
token->type = TOKEN_STAR;
break;
case '.':
token->type = TOKEN_DOT;
break;
case ',':
token->type = TOKEN_COMMA;
break;
default:
if (isStartIdentChar (c))
{
parseIdentifier (token->string, c);
token->lineNumber = getSourceLineNumber ();
token->filePosition = getInputFilePosition ();
token->keyword = lookupKeyword (vStringValue (token->string), Lang_go);
if (isKeyword (token, KEYWORD_NONE))
token->type = TOKEN_IDENTIFIER;
else
token->type = TOKEN_KEYWORD;
}
else
token->type = TOKEN_OTHER;
break;
}
done:
lastTokenType = token->type;
}