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Diffstat (limited to 'src/utils/validate.c')
| -rw-r--r-- | src/utils/validate.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/utils/validate.c b/src/utils/validate.c new file mode 100644 index 0000000..eb6cb22 --- /dev/null +++ b/src/utils/validate.c @@ -0,0 +1,177 @@ +/* + * This file is part of libdom. + * Licensed under the MIT License, + * http://www.opensource.org/licenses/mit-license.php + * Copyright 2009 Bo Yang <struggleyb.nku@gmail.com> + */ + +#include <inttypes.h> +#include <stddef.h> + +#include "utils/validate.h" + +#include <dom/core/string.h> + +#include "utils/character_valid.h" +#include "utils/namespace.h" +#include "utils/utils.h" + +/* An combination of various tests */ +static bool is_first_char(uint32_t ch); +static bool is_name_char(uint32_t ch); + +/* Test whether the character can be the first character of + * a NCName. */ +static bool is_first_char(uint32_t ch) +{ + /* Refer http://www.w3.org/TR/REC-xml/ for detail */ + if (((ch >= 'a') && (ch <= 'z')) || + ((ch >= 'A') && (ch <= 'Z')) || + (ch == '_') || (ch == ':') || + ((ch >= 0xC0) && (ch <= 0xD6)) || + ((ch >= 0xD8) && (ch <= 0xF6)) || + ((ch >= 0xF8) && (ch <= 0x2FF)) || + ((ch >= 0x370) && (ch <= 0x37D)) || + ((ch >= 0x37F) && (ch <= 0x1FFF)) || + ((ch >= 0x200C) && (ch <= 0x200D)) || + ((ch >= 0x2070) && (ch <= 0x218F)) || + ((ch >= 0x2C00) && (ch <= 0x2FEF)) || + ((ch >= 0x3001) && (ch <= 0xD7FF)) || + ((ch >= 0xF900) && (ch <= 0xFDCF)) || + ((ch >= 0xFDF0) && (ch <= 0xFFFD)) || + ((ch >= 0x10000) && (ch <= 0xEFFFF))) + return true; + + if (is_letter(ch) || ch == (uint32_t) '_' || ch == (uint32_t) ':') { + return true; + } + + return false; +} + +/* Test whether the character can be a part of a NCName */ +static bool is_name_char(uint32_t ch) +{ + /* Refer http://www.w3.org/TR/REC-xml/ for detail */ + if (((ch >= 'a') && (ch <= 'z')) || + ((ch >= 'A') && (ch <= 'Z')) || + ((ch >= '0') && (ch <= '9')) || /* !start */ + (ch == '_') || (ch == ':') || + (ch == '-') || (ch == '.') || (ch == 0xB7) || /* !start */ + ((ch >= 0xC0) && (ch <= 0xD6)) || + ((ch >= 0xD8) && (ch <= 0xF6)) || + ((ch >= 0xF8) && (ch <= 0x2FF)) || + ((ch >= 0x300) && (ch <= 0x36F)) || /* !start */ + ((ch >= 0x370) && (ch <= 0x37D)) || + ((ch >= 0x37F) && (ch <= 0x1FFF)) || + ((ch >= 0x200C) && (ch <= 0x200D)) || + ((ch >= 0x203F) && (ch <= 0x2040)) || /* !start */ + ((ch >= 0x2070) && (ch <= 0x218F)) || + ((ch >= 0x2C00) && (ch <= 0x2FEF)) || + ((ch >= 0x3001) && (ch <= 0xD7FF)) || + ((ch >= 0xF900) && (ch <= 0xFDCF)) || + ((ch >= 0xFDF0) && (ch <= 0xFFFD)) || + ((ch >= 0x10000) && (ch <= 0xEFFFF))) + return true; + + if (is_letter(ch) == true) + return true; + if (is_digit(ch) == true) + return true; + if (is_combining_char(ch) == true) + return true; + if (is_extender(ch) == true) + return true; + + if (ch == (uint32_t) '.' || ch == (uint32_t) '-' || + ch == (uint32_t) '_' || ch == (uint32_t) ':') + return true; + + return false; +} + +/** + * Test whether the name is a valid one according XML 1.0 standard. + * For the standard please refer: + * + * http://www.w3.org/TR/2004/REC-xml-20040204/ + * + * \param name The name need to be tested + * \return true if ::name is valid, false otherwise. + */ +bool _dom_validate_name(struct dom_string *name) +{ + uint32_t ch, len, i; + dom_exception err; + + if (name == NULL) + return false; + + len = dom_string_length(name); + if (len == 0) + return false; + + /* Test the first character of this string */ + err = dom_string_at(name, 0, &ch); + if (err != DOM_NO_ERR) + return false; + + if (is_first_char(ch) == false) + return false; + + /* Test all remain characters in this string */ + for(i = 1; i < len; i++) { + err = dom_string_at(name, i, &ch); + if (err != DOM_NO_ERR) + return false; + + if (is_name_char(ch) != true) + return false; + } + + return true; +} + +/** + * Validate whether the string is a legal NCName. + * Refer http://www.w3.org/TR/REC-xml-names/ for detail. + * + * \param str The name to validate + * \return true if ::name is valid, false otherwise. + */ +bool _dom_validate_ncname(struct dom_string *name) +{ + uint32_t ch, len, i; + dom_exception err; + + if (name == NULL) + return false; + + len = dom_string_length(name); + if (len == 0) + return false; + + /* Test the first character of this string */ + err = dom_string_at(name, 0, &ch); + if (err != DOM_NO_ERR) + return false; + + if (is_letter(ch) == false && ch != (uint32_t) '_') + return false; + + /* Test all remain characters in this string */ + for(i = 1; i < len; i++) { + err = dom_string_at(name, i, &ch); + if (err != DOM_NO_ERR) + return false; + + if (is_name_char(ch) == false) + return false; + + if (ch == (uint32_t) ':') + return false; + } + + return true; +} + |