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• Parser

Position

Fixtype of positions.

This is a product type introduced by fty::defprod.

Fields

line — posp

column — natp

A position within a file is normally specified by a combination of a line number and column number. We number lines from 1, which is consistent with [C:6.10.4/2]: since the characters in the first line have 0 preceding new-line characters, the number of the first line is 1 plus 0, i.e. 1. We number columns from 0, but we could change that to 1. Numbering lines from 1 and columns from 0 is also consistent with Emacs.

Subtopics

Positionp

Recognizer for position structures.

Position-fix

Fixing function for position structures.

Position-equiv

Basic equivalence relation for position structures.

Make-position

Basic constructor macro for position structures.

Change-position

Modifying constructor for position structures.

Position->line

Get the line field from a position.

Position->column

Get the column field from a position.