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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /intl/icu/source/common/unicode/parseerr.h
parentInitial commit. (diff)
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Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+* Copyright (C) 1999-2005, International Business Machines
+* Corporation and others. All Rights Reserved.
+**********************************************************************
+* Date Name Description
+* 03/14/00 aliu Creation.
+* 06/27/00 aliu Change from C++ class to C struct
+**********************************************************************
+*/
+#ifndef PARSEERR_H
+#define PARSEERR_H
+
+#include "unicode/utypes.h"
+
+
+/**
+ * \file
+ * \brief C API: Parse Error Information
+ */
+/**
+ * The capacity of the context strings in UParseError.
+ * @stable ICU 2.0
+ */
+enum { U_PARSE_CONTEXT_LEN = 16 };
+
+/**
+ * A UParseError struct is used to returned detailed information about
+ * parsing errors. It is used by ICU parsing engines that parse long
+ * rules, patterns, or programs, where the text being parsed is long
+ * enough that more information than a UErrorCode is needed to
+ * localize the error.
+ *
+ * <p>The line, offset, and context fields are optional; parsing
+ * engines may choose not to use to use them.
+ *
+ * <p>The preContext and postContext strings include some part of the
+ * context surrounding the error. If the source text is "let for=7"
+ * and "for" is the error (e.g., because it is a reserved word), then
+ * some examples of what a parser might produce are the following:
+ *
+ * <pre>
+ * preContext postContext
+ * "" "" The parser does not support context
+ * "let " "=7" Pre- and post-context only
+ * "let " "for=7" Pre- and post-context and error text
+ * "" "for" Error text only
+ * </pre>
+ *
+ * <p>Examples of engines which use UParseError (or may use it in the
+ * future) are Transliterator, RuleBasedBreakIterator, and
+ * RegexPattern.
+ *
+ * @stable ICU 2.0
+ */
+typedef struct UParseError {
+
+ /**
+ * The line on which the error occurred. If the parser uses this
+ * field, it sets it to the line number of the source text line on
+ * which the error appears, which will be a value >= 1. If the
+ * parse does not support line numbers, the value will be <= 0.
+ * @stable ICU 2.0
+ */
+ int32_t line;
+
+ /**
+ * The character offset to the error. If the line field is >= 1,
+ * then this is the offset from the start of the line. Otherwise,
+ * this is the offset from the start of the text. If the parser
+ * does not support this field, it will have a value < 0.
+ * @stable ICU 2.0
+ */
+ int32_t offset;
+
+ /**
+ * Textual context before the error. Null-terminated. The empty
+ * string if not supported by parser.
+ * @stable ICU 2.0
+ */
+ UChar preContext[U_PARSE_CONTEXT_LEN];
+
+ /**
+ * The error itself and/or textual context after the error.
+ * Null-terminated. The empty string if not supported by parser.
+ * @stable ICU 2.0
+ */
+ UChar postContext[U_PARSE_CONTEXT_LEN];
+
+} UParseError;
+
+#endif