Marmelator/pdf.js
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broken?

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This commit is contained in:
Kilian Schuettler 2025-03-17 00:21:40 +01:00
parent 2305c6416e
commit 1dc874260b
1 changed files with 21 additions and 24 deletions
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45
src/core/parser.js
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@ -64,49 +64,37 @@ class Parser {
xref, xref,
allowStreams = false, allowStreams = false,
recoveryMode = false, recoveryMode = false,
trackRanges = true,
}) { }) {
this.lexer = lexer; this.lexer = lexer;
this.xref = xref; this.xref = xref;
this.allowStreams = allowStreams; this.allowStreams = allowStreams;
this.recoveryMode = recoveryMode; this.recoveryMode = recoveryMode;
this.withRange = trackRanges;
this.imageCache = Object.create(null); this.imageCache = Object.create(null);
this._imageId = 0; this._imageId = 0;
this.refill(); this.refill();
} }
refill() { refill() {
if (this.withRange) { const [buf1, start1, end1] = this.lexer.getObj(true);
const [buf1, start1, end1] = this.lexer.getObjWithRange(); const [buf2, start2, end2] = this.lexer.getObj(true);
const [buf2, start2, end2] = this.lexer.getObjWithRange(); this.buf1 = buf1;
this.buf1 = buf1; this.range1 = [start1, end1];
this.range1 = [start1, end1]; this.buf2 = buf2;
this.buf2 = buf2; this.range2 = [start2, end2];
this.range2 = [start2, end2];
} else {
this.buf1 = this.lexer.getObj();
this.buf2 = this.lexer.getObj();
}
} }
shift() { shift() {
if (this.buf2 instanceof Cmd && this.buf2.cmd === "ID") { if (this.buf2 instanceof Cmd && this.buf2.cmd === "ID") {
this.buf1 = this.buf2; this.buf1 = this.buf2;
this.buf2 = null; this.buf2 = null;
if (this.withRange) {
this.range1 = this.range2;
this.range2 = null;
}
} else if (this.withRange) {
this.buf1 = this.buf2;
this.range1 = this.range2; this.range1 = this.range2;
const [buf2, start2, end2] = this.lexer.getObjWithRange(); this.range2 = null;
this.buf2 = buf2;
this.range2 = [start2, end2];
} else { } else {
this.buf1 = this.buf2; this.buf1 = this.buf2;
this.buf2 = this.lexer.getObj(); this.range1 = this.range2;
const [buf2, start2, end2] = this.lexer.getObj(true);
this.buf2 = buf2;
this.range2 = [start2, end2];
} }
} }
@ -1248,7 +1236,7 @@ class Lexer {
return [obj, start, end]; return [obj, start, end];
} }
getObj() { getObj(withRange = false) {
// Skip whitespace and comments. // Skip whitespace and comments.
let comment = false; let comment = false;
let ch = this.currentChar; let ch = this.currentChar;
@ -1267,7 +1255,16 @@ class Lexer {
} }
ch = this.nextChar(); ch = this.nextChar();
} }
const start = this.stream.pos - 1;
const obj = this.extracted(ch);
const end = this.stream.pos - 1;
if (withRange) {
return [start, obj, end];
}
return obj;
}
extracted(ch) {
// Start reading a token. // Start reading a token.
switch (ch | 0) { switch (ch | 0) {
case 0x30: // '0' case 0x30: // '0'