570 lines
17 KiB
Diff
570 lines
17 KiB
Diff
From aa7d479be0df3e118580e87f30e061445dfb37e3 Mon Sep 17 00:00:00 2001
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From: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
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Date: Fri, 02 Feb 2024 15:45:20 +0100
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Subject: [PATCH] Introduce emoji-segmenter to 3rdparty code
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This is a parser for emoji sequences developed by Google
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which is used in multiple other projects for parsing
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sequences of characters to see if they should be represented
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as color emojis or as monochrome text.
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[ChangeLog][Third-Party Code] Added the emoji-segmenter to
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third party code, for supporting complex emoji sequences.
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This can be configured using the -emojisegmenter option.
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Task-number: QTBUG-111801
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Change-Id: I7f87b0751415024d29f074d133850027f0003e29
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Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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---
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diff --git a/config_help.txt b/config_help.txt
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index 039582da..417c2067 100644
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--- a/config_help.txt
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+++ b/config_help.txt
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@@ -295,6 +295,7 @@ Gui, printing, widget options:
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-cups ................ Enable CUPS support [auto] (Unix only)
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+ -emojisegmenter ...... Enable complex emoji sequences [yes]
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-fontconfig .......... Enable Fontconfig support [auto] (Unix only)
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-freetype ............ Select used FreeType [system/qt/no]
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-harfbuzz ............ Select used HarfBuzz-NG [system/qt/no]
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diff --git a/src/3rdparty/emoji-segmenter/CONTRIBUTING.md b/src/3rdparty/emoji-segmenter/CONTRIBUTING.md
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new file mode 100644
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index 00000000..db177d4a
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--- /dev/null
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+++ b/src/3rdparty/emoji-segmenter/CONTRIBUTING.md
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@@ -0,0 +1,28 @@
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+# How to Contribute
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+
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+We'd love to accept your patches and contributions to this project. There are
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+just a few small guidelines you need to follow.
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+
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+## Contributor License Agreement
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+
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+Contributions to this project must be accompanied by a Contributor License
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+Agreement. You (or your employer) retain the copyright to your contribution;
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+this simply gives us permission to use and redistribute your contributions as
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+part of the project. Head over to <https://cla.developers.google.com/> to see
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+your current agreements on file or to sign a new one.
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+
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+You generally only need to submit a CLA once, so if you've already submitted one
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+(even if it was for a different project), you probably don't need to do it
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+again.
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+
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+## Code reviews
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+
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+All submissions, including submissions by project members, require review. We
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+use GitHub pull requests for this purpose. Consult
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+[GitHub Help](https://help.github.com/articles/about-pull-requests/) for more
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+information on using pull requests.
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+
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+## Community Guidelines
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+
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+This project follows
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+[Google's Open Source Community Guidelines](https://opensource.google.com/conduct/).
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diff --git a/src/3rdparty/emoji-segmenter/NEWS b/src/3rdparty/emoji-segmenter/NEWS
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new file mode 100644
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index 00000000..3fd07f1c
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--- /dev/null
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+++ b/src/3rdparty/emoji-segmenter/NEWS
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@@ -0,0 +1,28 @@
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+Overview of changes leading to 0.4.0
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+Friday, November 15, 2024
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+====================================
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+
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+* Add `make size` targe to
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+ determine binary size.
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+* Set has_vs for
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+ emoji_keycap_sequence
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+
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+Overview of changes leading to 0.3.0
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+Tuesday, September 5, 2024
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+====================================
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+
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+* Add segmentation for variation
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+ selector pairs, VS15 and VS16,
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+ needed for font-variant-emoji.
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+
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+Overview of changes leading to 0.2.0
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+Tuesday, Februar 20, 2024
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+====================================
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+
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+* Change Ragel mode to -F1
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+
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+Overview of changes leading to 0.1.0
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+Tuesday, January 29, 2019
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+====================================
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+
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+* Initial release
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diff --git a/src/3rdparty/emoji-segmenter/README.md b/src/3rdparty/emoji-segmenter/README.md
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new file mode 100644
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index 00000000..571a1a45
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--- /dev/null
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+++ b/src/3rdparty/emoji-segmenter/README.md
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@@ -0,0 +1,103 @@
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+Emoji Segmenter
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+===
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+
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+This repository contains a Ragel grammar and generated C code for segmenting
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+runs of text into text-presentation and emoji-presentation runs. It is currently
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+used in projects such as Chromium and Pango for deciding which preferred
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+presentation, color or text, a run of text should have.
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+
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+The goal is to stay very close to the grammar definitions in [Unicode Technical
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+Standard #51](http://www.unicode.org/reports/tr51/).
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+
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+API
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+===
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+
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+By including the `emoji_presentation_scanner.c` file, you will be able to call
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+the following API
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+
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+```
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+scan_emoji_presentation (emoji_text_iter_t p,
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+ const emoji_text_iter_t pe,
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+ bool* is_emoji,
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+ bool* has_vs)
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+```
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+
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+This API call will scan `emoji_text_iter_t p` for the next grammar-token and
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+return an iterator that points to the end of the next token. An end iterator
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+needs be specified as `pe` so that the scanner can compare against this and
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+knows where to stop. In the reference parameter `is_emoji` it returns whether
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+this token has emoji-presentation text-presentation, `has_vs` is set to true
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+if the token contains a variation selector.
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+
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+A grammar token is either a combination of an emoji plus variation selector 15
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+for text presentation, an emoji presentation sequence (emoji + VS16), an emoji
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+presentation emoji or emoji sequence, or a single text presentation character.
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+
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+`emoji_text_iter_t` is an iterator type over a buffer of the character classes
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+that are defined at the beginning of the the Ragel file, e.g. `EMOJI`,
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+`EMOJI_TEXT_PRESENTATION`, `REGIONAL_INDICATOR`, `KEYCAP_BASE`, etc.
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+
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+By typedef'ing `emoji_text_iter_t` to your own iterator type, you can implement
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+an adapter class that iterates over an input text buffer in any encoding, and on
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+dereferencing returns the correct Ragel class by implementing something similar
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+to the following Unicode character class to Ragel class mapping, example taken
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+from Chromium:
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+
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+```
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+char EmojiSegmentationCategory(UChar32 codepoint) {
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+ // Specific ones first.
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+ if (codepoint == kCombiningEnclosingKeycapCharacter)
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+ return COMBINING_ENCLOSING_KEYCAP;
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+ if (codepoint == kCombiningEnclosingCircleBackslashCharacter)
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+ return COMBINING_ENCLOSING_CIRCLE_BACKSLASH;
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+ if (codepoint == kZeroWidthJoinerCharacter)
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+ return ZWJ;
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+ if (codepoint == kVariationSelector15Character)
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+ return VS15;
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+ if (codepoint == kVariationSelector16Character)
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+ return VS16;
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+ if (codepoint == 0x1F3F4)
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+ return TAG_BASE;
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+ if ((codepoint >= 0xE0030 && codepoint <= 0xE0039) ||
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+ (codepoint >= 0xE0061 && codepoint <= 0xE007A))
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+ return TAG_SEQUENCE;
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+ if (codepoint == 0xE007F)
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+ return TAG_TERM;
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+ if (Character::IsEmojiModifierBase(codepoint))
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+ return EMOJI_MODIFIER_BASE;
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+ if (Character::IsModifier(codepoint))
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+ return EMOJI_MODIFIER;
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+ if (Character::IsRegionalIndicator(codepoint))
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+ return REGIONAL_INDICATOR;
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+ if (Character::IsEmojiKeycapBase(codepoint))
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+ return KEYCAP_BASE;
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+
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+ if (Character::IsEmojiEmojiDefault(codepoint))
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+ return EMOJI_EMOJI_PRESENTATION;
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+ if (Character::IsEmojiTextDefault(codepoint))
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+ return EMOJI_TEXT_PRESENTATION;
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+ if (Character::IsEmoji(codepoint))
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+ return EMOJI;
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+
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+ // Ragel state machine will interpret unknown category as "any".
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+ return kMaxEmojiScannerCategory;
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+}
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+```
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+
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+Update/Build requisites
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+===
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+
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+You need to have ragel installed if you want to modify the grammar and generate a new C file as output.
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+
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+`apt-get install ragel`
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+
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+then run
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+
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+`make`
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+
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+to update the `emoji_presentation_scanner.c` and `emoji_presentation_scanner_vs.c` output C source file.
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+
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+Contributing
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+===
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+
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+See the CONTRIBUTING.md file for how to contribute.
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diff --git a/src/3rdparty/emoji-segmenter/REUSE.toml b/src/3rdparty/emoji-segmenter/REUSE.toml
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new file mode 100644
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index 00000000..53d2dc47
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--- /dev/null
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+++ b/src/3rdparty/emoji-segmenter/REUSE.toml
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@@ -0,0 +1,7 @@
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+version = 1
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+
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+[[annotations]]
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+path = ["**"]
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+precedence = "closest"
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+SPDX-FileCopyrightText = "Copyright 2019 Google LLC"
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+SPDX-License-Identifier = "Apache-2.0"
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diff --git a/src/3rdparty/emoji-segmenter/emoji_presentation_scanner.c b/src/3rdparty/emoji-segmenter/emoji_presentation_scanner.c
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new file mode 100644
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index 00000000..00b7700a
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--- /dev/null
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+++ b/src/3rdparty/emoji-segmenter/emoji_presentation_scanner.c
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@@ -0,0 +1,251 @@
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+
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+#line 1 "emoji_presentation_scanner.rl"
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+/* Copyright 2019 Google LLC
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+ *
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+ * Licensed under the Apache License, Version 2.0 (the "License");
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+ * you may not use this file except in compliance with the License.
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+ * You may obtain a copy of the License at
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+ *
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+ * https://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+
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+#include <stdbool.h>
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+
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+#ifndef EMOJI_LINKAGE
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+#define EMOJI_LINKAGE static
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+#endif
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+
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+
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+#line 23 "emoji_presentation_scanner.c"
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+static const unsigned char _emoji_presentation_trans_keys[] = {
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+ 0u, 13u, 14u, 15u, 0u, 13u, 9u, 12u, 10u, 12u, 10u, 10u, 4u, 12u, 4u, 12u,
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+ 6u, 6u, 9u, 12u, 8u, 8u, 8u, 10u, 9u, 14u, 0
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+};
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+
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+static const char _emoji_presentation_key_spans[] = {
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+ 14, 2, 14, 4, 3, 1, 9, 9,
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+ 1, 4, 1, 3, 6
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+};
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+
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+static const char _emoji_presentation_index_offsets[] = {
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+ 0, 15, 18, 33, 38, 42, 44, 54,
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+ 64, 66, 71, 73, 77
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+};
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+
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+static const char _emoji_presentation_indicies[] = {
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+ 1, 1, 1, 2, 0, 0, 0, 1,
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+ 0, 0, 0, 0, 0, 1, 0, 4,
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+ 5, 3, 6, 6, 7, 8, 9, 9,
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+ 10, 11, 9, 9, 9, 9, 9, 12,
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+ 9, 5, 13, 14, 15, 0, 13, 16,
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+ 17, 16, 13, 0, 17, 16, 16, 16,
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+ 16, 16, 13, 16, 17, 16, 17, 16,
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+ 16, 16, 16, 5, 13, 14, 15, 16,
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+ 5, 18, 5, 13, 19, 20, 18, 14,
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+ 21, 23, 22, 13, 22, 5, 13, 14,
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+ 15, 16, 4, 16, 0
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+};
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+
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+static const char _emoji_presentation_trans_targs[] = {
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+ 2, 4, 6, 2, 1, 2, 3, 3,
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+ 7, 2, 8, 9, 12, 0, 2, 5,
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+ 2, 5, 2, 10, 11, 2, 2, 2
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+};
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+
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+static const char _emoji_presentation_trans_actions[] = {
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+ 1, 2, 2, 3, 0, 4, 7, 2,
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+ 2, 8, 0, 7, 2, 0, 9, 10,
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+ 11, 2, 12, 0, 10, 13, 14, 15
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+};
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+
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+static const char _emoji_presentation_to_state_actions[] = {
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+ 0, 0, 5, 0, 0, 0, 0, 0,
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+ 0, 0, 0, 0, 0
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+};
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+
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+static const char _emoji_presentation_from_state_actions[] = {
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+ 0, 0, 6, 0, 0, 0, 0, 0,
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+ 0, 0, 0, 0, 0
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+};
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+
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+static const char _emoji_presentation_eof_trans[] = {
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+ 1, 4, 0, 1, 17, 1, 17, 17,
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+ 19, 19, 22, 23, 17
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+};
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+
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+static const int emoji_presentation_start = 2;
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+
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+static const int emoji_presentation_en_text_and_emoji_run = 2;
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+
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+
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+#line 26 "emoji_presentation_scanner.rl"
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+
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+
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+
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+#line 100 "emoji_presentation_scanner.rl"
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+
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+
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+EMOJI_LINKAGE emoji_text_iter_t
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+scan_emoji_presentation (emoji_text_iter_t p,
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+ const emoji_text_iter_t pe,
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+ bool* is_emoji,
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+ bool* has_vs)
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+{
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+ emoji_text_iter_t ts;
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+ emoji_text_iter_t te;
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+ const emoji_text_iter_t eof = pe;
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+
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+ (void)ts;
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+
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+ unsigned act;
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+ int cs;
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+
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+
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+#line 100 "emoji_presentation_scanner.c"
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+ {
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+ cs = emoji_presentation_start;
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+ ts = 0;
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+ te = 0;
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+ act = 0;
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+ }
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+
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+#line 106 "emoji_presentation_scanner.c"
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+ {
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+ int _slen;
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+ int _trans;
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+ const unsigned char *_keys;
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+ const char *_inds;
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+ if ( p == pe )
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+ goto _test_eof;
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+_resume:
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+ switch ( _emoji_presentation_from_state_actions[cs] ) {
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+ case 6:
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+#line 1 "NONE"
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+ {ts = p;}
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+ break;
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+#line 118 "emoji_presentation_scanner.c"
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+ }
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+
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+ _keys = _emoji_presentation_trans_keys + (cs<<1);
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+ _inds = _emoji_presentation_indicies + _emoji_presentation_index_offsets[cs];
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+
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+ _slen = _emoji_presentation_key_spans[cs];
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+ _trans = _inds[ _slen > 0 && _keys[0] <=(*p) &&
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+ (*p) <= _keys[1] ?
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+ (*p) - _keys[0] : _slen ];
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+
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+_eof_trans:
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+ cs = _emoji_presentation_trans_targs[_trans];
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+
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+ if ( _emoji_presentation_trans_actions[_trans] == 0 )
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+ goto _again;
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+
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+ switch ( _emoji_presentation_trans_actions[_trans] ) {
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+ case 9:
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+#line 94 "emoji_presentation_scanner.rl"
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+ {te = p+1;{ *is_emoji = false; *has_vs = true; return te; }}
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+ break;
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+ case 15:
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+#line 95 "emoji_presentation_scanner.rl"
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+ {te = p+1;{ *is_emoji = true; *has_vs = true; return te; }}
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+ break;
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+ case 4:
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+#line 96 "emoji_presentation_scanner.rl"
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+ {te = p+1;{ *is_emoji = true; *has_vs = false; return te; }}
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+ break;
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+ case 8:
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+#line 97 "emoji_presentation_scanner.rl"
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+ {te = p+1;{ *is_emoji = false; *has_vs = false; return te; }}
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+ break;
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+ case 13:
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+#line 94 "emoji_presentation_scanner.rl"
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+ {te = p;p--;{ *is_emoji = false; *has_vs = true; return te; }}
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+ break;
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+ case 14:
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+#line 95 "emoji_presentation_scanner.rl"
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+ {te = p;p--;{ *is_emoji = true; *has_vs = true; return te; }}
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+ break;
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+ case 11:
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+#line 96 "emoji_presentation_scanner.rl"
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+ {te = p;p--;{ *is_emoji = true; *has_vs = false; return te; }}
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+ break;
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+ case 12:
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+#line 97 "emoji_presentation_scanner.rl"
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+ {te = p;p--;{ *is_emoji = false; *has_vs = false; return te; }}
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+ break;
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+ case 3:
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+#line 96 "emoji_presentation_scanner.rl"
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+ {{p = ((te))-1;}{ *is_emoji = true; *has_vs = false; return te; }}
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+ break;
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+ case 1:
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+#line 1 "NONE"
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+ { switch( act ) {
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+ case 2:
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+ {{p = ((te))-1;} *is_emoji = true; *has_vs = true; return te; }
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+ break;
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+ case 3:
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+ {{p = ((te))-1;} *is_emoji = true; *has_vs = false; return te; }
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+ break;
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+ case 4:
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+ {{p = ((te))-1;} *is_emoji = false; *has_vs = false; return te; }
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+ break;
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+ }
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+ }
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+ break;
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+ case 10:
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+#line 1 "NONE"
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+ {te = p+1;}
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+#line 95 "emoji_presentation_scanner.rl"
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+ {act = 2;}
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+ break;
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+ case 2:
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+#line 1 "NONE"
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+ {te = p+1;}
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+#line 96 "emoji_presentation_scanner.rl"
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+ {act = 3;}
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+ break;
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+ case 7:
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+#line 1 "NONE"
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+ {te = p+1;}
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+#line 97 "emoji_presentation_scanner.rl"
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+ {act = 4;}
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+ break;
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+#line 188 "emoji_presentation_scanner.c"
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+ }
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+
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+_again:
|
|
+ switch ( _emoji_presentation_to_state_actions[cs] ) {
|
|
+ case 5:
|
|
+#line 1 "NONE"
|
|
+ {ts = 0;}
|
|
+ break;
|
|
+#line 195 "emoji_presentation_scanner.c"
|
|
+ }
|
|
+
|
|
+ if ( ++p != pe )
|
|
+ goto _resume;
|
|
+ _test_eof: {}
|
|
+ if ( p == eof )
|
|
+ {
|
|
+ if ( _emoji_presentation_eof_trans[cs] > 0 ) {
|
|
+ _trans = _emoji_presentation_eof_trans[cs] - 1;
|
|
+ goto _eof_trans;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ }
|
|
+
|
|
+#line 118 "emoji_presentation_scanner.rl"
|
|
+
|
|
+
|
|
+ /* Should not be reached. */
|
|
+ *is_emoji = false;
|
|
+ *has_vs = false;
|
|
+ return p;
|
|
+}
|
|
diff --git a/src/3rdparty/emoji-segmenter/patch/0001-Compile-with-warnings-are-errors.patch b/src/3rdparty/emoji-segmenter/patch/0001-Compile-with-warnings-are-errors.patch
|
|
new file mode 100644
|
|
index 00000000..0cc1868c
|
|
--- /dev/null
|
|
+++ b/src/3rdparty/emoji-segmenter/patch/0001-Compile-with-warnings-are-errors.patch
|
|
@@ -0,0 +1,26 @@
|
|
+From 4ced1426e27320e00b0dd28693df5d95c648d230 Mon Sep 17 00:00:00 2001
|
|
+From: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
|
|
+Date: Thu, 14 Nov 2024 09:42:11 +0100
|
|
+Subject: [PATCH] Compile with warnings-are-errors
|
|
+
|
|
+Change-Id: Icea8febefc90f3f047143e5b76ff511145c0dcae
|
|
+---
|
|
+ src/3rdparty/emoji-segmenter/emoji_presentation_scanner.c | 2 ++
|
|
+ 1 file changed, 2 insertions(+)
|
|
+
|
|
+diff --git a/src/3rdparty/emoji-segmenter/emoji_presentation_scanner.c b/src/3rdparty/emoji-segmenter/emoji_presentation_scanner.c
|
|
+index 56e2e78033..ce7e01846c 100644
|
|
+--- a/src/3rdparty/emoji-segmenter/emoji_presentation_scanner.c
|
|
++++ b/src/3rdparty/emoji-segmenter/emoji_presentation_scanner.c
|
|
+@@ -101,6 +101,8 @@ scan_emoji_presentation (emoji_text_iter_t p,
|
|
+ emoji_text_iter_t te;
|
|
+ const emoji_text_iter_t eof = pe;
|
|
+
|
|
++ (void)ts;
|
|
++
|
|
+ unsigned act;
|
|
+ int cs;
|
|
+
|
|
+--
|
|
+2.40.0.windows.1
|
|
+
|
|
diff --git a/src/3rdparty/emoji-segmenter/qt_attribution.json b/src/3rdparty/emoji-segmenter/qt_attribution.json
|
|
new file mode 100644
|
|
index 00000000..64083381
|
|
--- /dev/null
|
|
+++ b/src/3rdparty/emoji-segmenter/qt_attribution.json
|
|
@@ -0,0 +1,16 @@
|
|
+{
|
|
+ "Id": "emoji-segmenter",
|
|
+ "Name": "Emoji Segmenter",
|
|
+ "QDocModule": "qtgui",
|
|
+ "QtUsage": "Used in QtGui for parsing complex emoji sequences. Can be configured using the -emojisegmenter option.",
|
|
+ "SecurityCritical": true,
|
|
+
|
|
+ "Description": "A parser for emoji sequences.",
|
|
+ "Homepage": "https://github.com/google/emoji-segmenter",
|
|
+ "Version": "0.4.0",
|
|
+ "DownloadLocation": "https://github.com/google/emoji-segmenter/releases/tag/0.4.0",
|
|
+
|
|
+ "License": "Apache License 2.0",
|
|
+ "LicenseId": "Apache-2.0",
|
|
+ "Copyright": "Copyright 2019 Google LLC"
|
|
+}
|
|
diff --git a/src/gui/configure.cmake b/src/gui/configure.cmake
|
|
index 0e53f512..44bef7d3 100644
|
|
--- a/src/gui/configure.cmake
|
|
+++ b/src/gui/configure.cmake
|
|
@@ -689,6 +689,12 @@ qt_feature("direct2d1_1" PRIVATE
|
|
LABEL "Direct 2D 1.1"
|
|
CONDITION QT_FEATURE_direct2d AND TEST_d2d1_1
|
|
)
|
|
+qt_feature("emojisegmenter" PUBLIC PRIVATE
|
|
+ SECTION "Fonts"
|
|
+ LABEL "Emoji Segmenter"
|
|
+ PURPOSE "Supports parsing complex emoji sequences for better font resolution."
|
|
+)
|
|
+qt_feature_definition("emojisegmenter" "QT_NO_EMOJISEGMENTER" NEGATE VALUE "1")
|
|
qt_feature("evdev" PRIVATE
|
|
LABEL "evdev"
|
|
CONDITION QT_FEATURE_thread AND TEST_evdev
|
|
@@ -1285,6 +1291,7 @@ qt_feature("wayland" PUBLIC
|
|
|
|
qt_configure_add_summary_section(NAME "Qt Gui")
|
|
qt_configure_add_summary_entry(ARGS "accessibility")
|
|
+qt_configure_add_summary_entry(ARGS "emojisegmenter")
|
|
qt_configure_add_summary_entry(ARGS "freetype")
|
|
qt_configure_add_summary_entry(ARGS "system-freetype")
|
|
qt_configure_add_summary_entry(ARGS "harfbuzz")
|
|
diff --git a/src/gui/qt_cmdline.cmake b/src/gui/qt_cmdline.cmake
|
|
index 446618eb..5465b2c6 100644
|
|
--- a/src/gui/qt_cmdline.cmake
|
|
+++ b/src/gui/qt_cmdline.cmake
|
|
@@ -10,6 +10,7 @@ qt_commandline_option(eglfs TYPE boolean)
|
|
qt_commandline_option(evdev TYPE boolean)
|
|
qt_commandline_option(fontconfig TYPE boolean)
|
|
qt_commandline_option(freetype TYPE enum VALUES no qt system)
|
|
+qt_commandline_option(emojisegmenter TYPE boolean)
|
|
qt_commandline_option(gbm TYPE boolean)
|
|
qt_commandline_option(gif TYPE boolean)
|
|
qt_commandline_option(harfbuzz TYPE enum VALUES no qt system)
|