From: Markus Triska <triska@metalevel.at>
Date: Wed, 8 Dec 2021 09:42:19 +0000 (+0100)
Subject: ENHANCED: support full layout text sequence (also comments) in integers with underscores
X-Git-Tag: v0.9.0~5^2
X-Git-Url: https://git.sagredo.dev/?a=commitdiff_plain;h=f79b8a1ca5861ae6a7652301ed2b3faea4b0f0b4;p=scryer-prolog.git

ENHANCED: support full layout text sequence (also comments) in integers with underscores

Example:

    ?- X = 1_/**/2.
    %@    X = 12.

Following the comment in https://github.com/mthom/scryer-prolog/pull/1112#issuecomment-981540485
---

diff --git a/crates/prolog_parser/src/lexer.rs b/crates/prolog_parser/src/lexer.rs
index 210722c6..8be50d36 100644
--- a/crates/prolog_parser/src/lexer.rs
+++ b/crates/prolog_parser/src/lexer.rs
@@ -564,11 +564,8 @@ impl<'a, R: Read> Lexer<'a, R> {
 
         if c == '_' {
             self.skip_char()?;
+            self.scan_for_layout()?;
             c = self.lookahead_char()?;
-            while layout_char!(c) {
-                self.skip_char()?;
-                c = self.lookahead_char()?;
-            }
 
             if decimal_digit_char!(c) {
                 Ok(c)