From 13b6f88d9b4710e1c51b36a97c3b45a6441a7820 Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Tue, 27 Apr 2021 10:04:57 +1000
Subject: Rename CharacterSet and CharacterCategory modules in Scintilla to
 CharacterType and CharacterCategoryMap to avoid clashes with Lexilla when
 building an executable that includes both.

---
 src/CharacterType.h | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 src/CharacterType.h

(limited to 'src/CharacterType.h')

diff --git a/src/CharacterType.h b/src/CharacterType.h
new file mode 100644
index 000000000..1a478cbe4
--- /dev/null
+++ b/src/CharacterType.h
@@ -0,0 +1,112 @@
+// Scintilla source code edit control
+/** @file CharacterType.h
+ ** Tests for character type and case-insensitive comparisons.
+ **/
+// Copyright 2007 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#ifndef CHARACTERTYPE_H
+#define CHARACTERTYPE_H
+
+namespace Scintilla {
+
+// Functions for classifying characters
+
+constexpr bool IsASpace(int ch) noexcept {
+    return (ch == ' ') || ((ch >= 0x09) && (ch <= 0x0d));
+}
+
+constexpr bool IsASpaceOrTab(int ch) noexcept {
+	return (ch == ' ') || (ch == '\t');
+}
+
+constexpr bool IsADigit(int ch) noexcept {
+	return (ch >= '0') && (ch <= '9');
+}
+
+constexpr bool IsADigit(int ch, int base) noexcept {
+	if (base <= 10) {
+		return (ch >= '0') && (ch < '0' + base);
+	} else {
+		return ((ch >= '0') && (ch <= '9')) ||
+		       ((ch >= 'A') && (ch < 'A' + base - 10)) ||
+		       ((ch >= 'a') && (ch < 'a' + base - 10));
+	}
+}
+
+constexpr bool IsASCII(int ch) noexcept {
+	return (ch >= 0) && (ch < 0x80);
+}
+
+constexpr bool IsLowerCase(int ch) noexcept {
+	return (ch >= 'a') && (ch <= 'z');
+}
+
+constexpr bool IsUpperCase(int ch) noexcept {
+	return (ch >= 'A') && (ch <= 'Z');
+}
+
+constexpr bool IsUpperOrLowerCase(int ch) noexcept {
+	return IsUpperCase(ch) || IsLowerCase(ch);
+}
+
+constexpr bool IsAlphaNumeric(int ch) noexcept {
+	return
+		((ch >= '0') && (ch <= '9')) ||
+		((ch >= 'a') && (ch <= 'z')) ||
+		((ch >= 'A') && (ch <= 'Z'));
+}
+
+/**
+ * Check if a character is a space.
+ * This is ASCII specific but is safe with chars >= 0x80.
+ */
+constexpr bool isspacechar(int ch) noexcept {
+    return (ch == ' ') || ((ch >= 0x09) && (ch <= 0x0d));
+}
+
+constexpr bool iswordchar(int ch) noexcept {
+	return IsAlphaNumeric(ch) || ch == '.' || ch == '_';
+}
+
+constexpr bool iswordstart(int ch) noexcept {
+	return IsAlphaNumeric(ch) || ch == '_';
+}
+
+constexpr bool isoperator(int ch) noexcept {
+	if (IsAlphaNumeric(ch))
+		return false;
+	if (ch == '%' || ch == '^' || ch == '&' || ch == '*' ||
+	        ch == '(' || ch == ')' || ch == '-' || ch == '+' ||
+	        ch == '=' || ch == '|' || ch == '{' || ch == '}' ||
+	        ch == '[' || ch == ']' || ch == ':' || ch == ';' ||
+	        ch == '<' || ch == '>' || ch == ',' || ch == '/' ||
+	        ch == '?' || ch == '!' || ch == '.' || ch == '~')
+		return true;
+	return false;
+}
+
+// Simple case functions for ASCII supersets.
+
+template <typename T>
+constexpr T MakeUpperCase(T ch) noexcept {
+	if (ch < 'a' || ch > 'z')
+		return ch;
+	else
+		return ch - 'a' + 'A';
+}
+
+template <typename T>
+constexpr T MakeLowerCase(T ch) noexcept {
+	if (ch < 'A' || ch > 'Z')
+		return ch;
+	else
+		return ch - 'A' + 'a';
+}
+
+int CompareCaseInsensitive(const char *a, const char *b) noexcept;
+int CompareNCaseInsensitive(const char *a, const char *b, size_t len) noexcept;
+
+}
+
+#endif
-- 
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