changed the number of maximum digits after \x in an awk string
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@ -13,9 +13,9 @@ tranforms them to an internal form for execution.
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An QSEAWK program can be composed of the following elements at the top level.
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- pattern-action blocks
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- *BEGIN* blocks
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- *END* blocks
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- pattern-action blocks
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- user-defined functions
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- comments
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- \@global variables
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@ -107,17 +107,17 @@ point with a preceeding number.
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34.56e # 34.56
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34.56E3
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An integer can be prefixed with 0x, 0, 0b for a hexa-decimal number, an octal number,
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and a binary number respectively. For a hexa-decimal number, letters from A to F
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can form a number case-insenstively in addition to numeric digits.
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An integer can be prefixed with 0x, 0, 0b for a hexa-decimal number, an octal
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number, and a binary number respectively. For a hexa-decimal number, letters
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from A to F can form a number case-insenstively in addition to numeric digits.
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0xA1 # 161
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0xB0b0 # 45232
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020 # 16
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0b101 # 5
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If the prefix is not followed by any numeric digits, it is still a valid token and
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represents the value of 0.
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If the prefix is not followed by any numeric digits, it is still a valid token
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and represents the value of 0.
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0x # 0x0 but not desirable.
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0b # 0b0 but not desirable.
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@ -129,19 +129,42 @@ A string is enclosed in a pair of double quotes or single quotes.
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A character in a string encosed in the double-quotes, when preceded with
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a back-slash, changes the meaning.
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- \\
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- \a
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- \b
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- \uXXXX
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- \UXXXXXXXX
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- \\a - alert
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- \\b - backspace
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- \\f - formfeed
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- \\n - newline
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- \\r - carriage return
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- \\t - horizontal tab
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- \\v - vertical tab
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- \\\\ - backslash
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- \\" - double quote
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You can use \\u and \\U in a string to specify a character by unicode if
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[Character Type](@ref installation) chosen for building is the wide character
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type.
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You can specify a character with an octal number or a hexadecimal number.
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The actual value can range between 0 and 255 inclusive.
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- \\OOO - O is an octal digit.
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- \\xXX - X is a hexadecimal digit.
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In the octal sequence, you can specify up to 3 octal digits after \\; In the
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hexadecimal sequence, you can specify as many hexadecimal digits as possible
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after \\x.
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If the number doesn't fit in the range that the default character type
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can represent, the character generated from the sequence is undefined.
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You can use \\u and \\U in a string to specify a character by a Unicode code
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point if [Character Type](@ref installation) chosen for building is the
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wide character type.
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- \\uXXXX - X is a hexadecimal digit.
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- \\UXXXXXXXX - X is a hexadecimal digit.
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~~~~~{.awk}
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BEGIN {
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print "\uC720\uB2C8\uCF54\uB4DC \U00007D71\U00004E00\U000078BC";
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}
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~~~~~
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This program should print 유니코드 統一碼.
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@ -5415,11 +5415,11 @@ static int get_number (qse_awk_t* awk, qse_awk_tok_t* tok)
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static int get_string (
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qse_awk_t* awk, qse_char_t end_char,
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qse_char_t esc_char, int keep_esc_char,
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int preescaped, qse_awk_tok_t* tok)
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qse_size_t preescaped, qse_awk_tok_t* tok)
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{
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qse_cint_t c;
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int escaped = preescaped;
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int digit_count = 0;
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qse_size_t escaped = preescaped;
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qse_size_t digit_count = 0;
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qse_cint_t c_acc = 0;
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while (1)
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@ -5440,6 +5440,8 @@ static int get_string (
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digit_count++;
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if (digit_count >= escaped)
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{
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/* should i limit the max to 0xFF/0377?
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* if (c_acc > 0377) c_acc = 0377;*/
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ADD_TOKEN_CHAR (awk, tok, c_acc);
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escaped = 0;
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}
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@ -5451,7 +5453,7 @@ static int get_string (
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escaped = 0;
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}
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}
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else if (escaped == 2 || escaped == 4 || escaped == 8)
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else if (escaped == QSE_TYPE_MAX(qse_size_t) || escaped == 4 || escaped == 8)
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{
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if (c >= QSE_T('0') && c <= QSE_T('9'))
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{
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@ -5490,9 +5492,8 @@ static int get_string (
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{
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qse_char_t rc;
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rc = (escaped == 2)? QSE_T('x'):
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rc = (escaped == QSE_TYPE_MAX(qse_size_t))? QSE_T('x'):
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(escaped == 4)? QSE_T('u'): QSE_T('U');
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if (digit_count == 0)
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ADD_TOKEN_CHAR (awk, tok, rc);
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else ADD_TOKEN_CHAR (awk, tok, c_acc);
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@ -5533,12 +5534,12 @@ static int get_string (
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}
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else if (c == QSE_T('x'))
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{
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escaped = 2;
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escaped = QSE_TYPE_MAX(qse_size_t);
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digit_count = 0;
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c_acc = 0;
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continue;
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}
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#ifdef QSE_CHAR_IS_WCHAR
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#if defined(QSE_CHAR_IS_WCHAR)
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else if (c == QSE_T('u') && QSE_SIZEOF(qse_char_t) >= 2)
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{
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escaped = 4;
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