juicescript/legacy-code
juicescript/legacy-code
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🧑‍💻 make char an attribute

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This commit is contained in:
DrMaxNix 2022-09-08 17:36:05 +02:00
parent 8c224b6666
commit 376016c8a6
1 changed files with 18 additions and 19 deletions
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37
src/lexer.js
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@ -35,6 +35,9 @@ class Juicescript_lexer {
// start where last scan ended
this.start = this.end;
// consume next character
this.char = this.next();
// scan next token
this.scan_one();
}
@ -55,11 +58,7 @@ class Juicescript_lexer {
HELPER: Scan one token at current position
*/
scan_one(){
// consume next character
let char = this.next();
// scan character
switch(char){
switch(this.char){
// WHITESPACE //
case " ":
case "\r":
@ -88,7 +87,7 @@ class Juicescript_lexer {
case "=":
if (this.match("=")) this.token_add({type: Juicescript.token_type.EQUAL});
else this.error("unexpected character '" + char + "'");
else this.error("unexpected character '" + this.char + "'");
break;
case "<":
@ -124,14 +123,14 @@ class Juicescript_lexer {
case "#":
case "/":
// block comment
if(char === "/" && this.match("*")){
if(this.char === "/" && this.match("*")){
this.scan_block_comment();
break;
}
// single slash
if(char === "/" && !this.match("/")){
this.error("unexpected character '" + char + "'");
if(this.char === "/" && !this.match("/")){
this.error("unexpected character '" + this.char + "'");
break;
}
@ -143,12 +142,12 @@ class Juicescript_lexer {
// STRINGS //
// handle escape sequences
case "\"":
this.scan_string(char, true);
this.scan_string(this.char, true);
break;
// ignore escape sequences
case "'":
this.scan_string(char, false);
this.scan_string(this.char, false);
break;
@ -177,7 +176,7 @@ class Juicescript_lexer {
}
// ignore with error
this.error("unexpected character '" + char + "'");
this.error("unexpected character '" + this.char + "'");
break;
@ -191,26 +190,26 @@ class Juicescript_lexer {
}
// ignore with error
this.error("unexpected character '" + char + "'");
this.error("unexpected character '" + this.char + "'");
break;
// EVERYTHING ELSE //
default:
// numbers
if(this.is_digit(char)){
if(this.is_digit(this.char)){
this.scan_number();
break;
}
// identifiers
if(this.is_alpha(char)){
if(this.is_alpha(this.char)){
this.scan_identifier();
break;
}
// unexpected (ignore with error)
this.error("unexpected character '" + char + "'");
this.error("unexpected character '" + this.char + "'");
break;
}
}
@ -323,7 +322,7 @@ class Juicescript_lexer {
// TRY TO CONSUME UNTIL END OF SOURCE //
while(!this.is_at_end()){
// do we have a `*/`?
if(this.peek(-1) === "*" && this.peek() === "/"){
if(this.char === "*" && this.peek() === "/"){
// block comment ends here
break;
}
@ -391,7 +390,7 @@ class Juicescript_lexer {
// HANDLE OTHER BASES //
// check for '0' prefix
if(this.peek(-1) === "0"){
if(this.char === "0"){
// assume we have to cut off a prefix of length 2
number_string_offset = 2;
@ -664,7 +663,7 @@ class Juicescript_lexer {
}
/*
HELPER: Automagically add additional info to stderr
HELPER: Automagically keep track of problems and add additional info to stderr
*/
debug(text, additional){
// add defaults