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From 8b11c418417d36b6f818fd52882a051977c152a1 Mon Sep 17 00:00:00 2001
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From: Daniel Stone <daniels@collabora.com>
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Date: Mon, 26 Jun 2017 16:45:16 +0100
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Subject: [PATCH 01/10] parser: Don't set more maps when we don't have any
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If the scanner indicates that we might have something which looks like a
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map, but the parser in fact fails to create that map, we will try to
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access the map regardless. Stop doing that.
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testcase: 'xkb_keymap {' -> '#kb_keymap'
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Signed-off-by: Daniel Stone <daniels@collabora.com>
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(cherry picked from commit a8ea7a1d3daa7bdcb877615ae0a252c189153bd2)
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---
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src/xkbcomp/parser.y | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/src/xkbcomp/parser.y b/src/xkbcomp/parser.y
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index 7ff6f92..b5b0c2c 100644
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--- a/src/xkbcomp/parser.y
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+++ b/src/xkbcomp/parser.y
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@@ -239,9 +239,9 @@ resolve_keysym(const char *name, xkb_keysym_t *sym_rtrn)
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*/
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XkbFile : XkbCompositeMap
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- { $$ = param->rtrn = $1; param->more_maps = true; }
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+ { $$ = param->rtrn = $1; param->more_maps = !!param->rtrn; }
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| XkbMapConfig
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- { $$ = param->rtrn = $1; param->more_maps = true; YYACCEPT; }
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+ { $$ = param->rtrn = $1; param->more_maps = !!param->rtrn; YYACCEPT; }
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| END_OF_FILE
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{ $$ = param->rtrn = NULL; param->more_maps = false; }
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;
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@@ -779,6 +779,7 @@ parse(struct xkb_context *ctx, struct scanner *scanner, const char *map)
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.scanner = scanner,
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.ctx = ctx,
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.rtrn = NULL,
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+ .more_maps = false,
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};
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/*
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--
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2.20.1
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