Landing: 3b774d3f7981

Project / Subsystem

gcc / cobol

Date

2026-08-27

Author

James K. Lowden

Commit

3b774d3f7981182028bc991798e06eeedb7ba5fe

Source

github

Perf win

No

Breaking

No

All attributes

project
gcc
subsystem
cobol
patch_id
—
commit_hash
3b774d3f7981182028bc991798e06eeedb7ba5fe
source_type
github
headline
COBOL reserved words handling and screen syntax parsing improved.
tldr
GnuCOBOL reserved words are now correctly handled, and a new option allows parsing of GnuCOBOL screen syntax.
author
James K. Lowden
outcome
committed
performance_win
false
breaking_change
false
series_id
—
series_parts
[]
tags
  • • cobol
  • • parser
  • • keywords
discussion_id_link
—
bugzilla_pr
—
date
2026-08-27T00:00:00.000Z

This commit enhances GCC’s COBOL support by refining the handling of reserved words and introducing new parsing capabilities. Reserved words that are not defined by the ISO standard are now renamed to prevent conflicts with user-defined names, ensuring that reserved words can be reliably identified by consulting the token list. Additionally, a new compiler option, -Wdisplay-screen, has been added to enable the parsing of GnuCOBOL’s screen syntax within DISPLAY statements. While this syntax is parsed, it does not affect the compiler’s output.