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69 lines
2.6 KiB
Plaintext
69 lines
2.6 KiB
Plaintext
Extended String Manipulation Functions for C02
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This library contains less commonly used string functions. It is maintained
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as a separate set of files so that it can be included only when needed, in
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order to reduce program size.
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Strings follow all the same rules as specified in the string.h02 library.
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Usage: at the beginning of the program use the directives
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#include <stddef.h02>
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#include <string.h02>
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#include <stringx.h02>
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The following functions are defined:
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n = strspn(&s); Returns the length of the span of characters at
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the beginning of destination string set by prior
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strdst() call that are present in source string s.
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This mimics the functionality of the standard C
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and C++ strspn() function.
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Note: calls routine strchr(), leaving dstlo and
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dsthi pointing to the destination string.
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n = strcsp(&s); Returns the length of the span of characters at
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the beginning of destination string set by prior
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strdst() call that are not present in source
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string s.
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This mimics the functionality of the standard C
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and C++ strcspn() function.
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Note: aliased to the strbrk() function, which calls
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strchr(), leaving dstlo and dsthi pointing to the
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destination string.
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n = strpbk(&s); Returns the poisition of the first character in
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the destination string set by prior strdst() call
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that is present in source string s.
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If no characters in the source string are present
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in the destination string, returns 255.
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This mimics the functionality of the standard C
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and C++ strpbrk() function.
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Note: calls routine strchr(), leaving dstlo and
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dsthi pointing to the destination string.
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Note: This library expects the following functions to be defined
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setdst(&s); Set destination string pointer
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setsrc(&s); Set source string pointer and initialize index
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strchr(c, &s); Return position of character in string
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along with the zero page pairs
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strlo, strhi Source String Pointer
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dstlo, dsthi Destination String Pointer
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and the memory locations
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temp0, temp1 Temporary storage
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