Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.stsci.edu/~sontag/spicedocs/cspice/lparss_c.html
Дата изменения: Sat Dec 17 06:09:15 2005 Дата индексирования: Mon Apr 11 00:04:33 2016 Кодировка: Поисковые слова: п п п п п п п п п п п п п п п п п п |
Parse a list of items separated by multiple delimiters, placing the resulting items into a set.
None.
VARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- list I List of items delimited by delims. delims I Single characters which delimit items. set O Set containing items in the list, left justified.
list is a list of items delimited by any one of the characters in the string delims. Consecutive delimiters, and delimiters at the beginning and end of the list, are considered to delimit empty items. A blank or empty list is considered to contain a single, empty item. Leading and trailing blanks in list are ignored. delims contains the individual characters which delimit the items in the list. These may be any ASCII characters, including blanks. However, by definition, consecutive blanks are NOT considered to be consecutive delimiters. Nor are a blank and any other delimiter considered to be consecutive delimiters.
set is a CSPICE set containing the items in the list, left justified. Any item in the list too long to fit into an element of items is truncated on the right. Empty (null) or blank items in the input string are mapped to empty strings on output. set should be declared by the caller as a character SpiceCell: SPICECHAR_CELL ( set, NMAX, LENGTH ); where NMAX is the maximum number of strings the set is expected to hold and LENGTH is the maximum length of the strings, counting the terminating null. The strings in set will be sorted in increasing order, and duplicates will be removed. Trailing blanks are ignored in string comparisons.
None.
None.
The following examples illustrate the operation of lparss_c. 1) Let list == " A number of words separated by spaces. " delims == " ,." Let set be declared with size 20. Then Element 0 of set == " " Element 1 of set == "A" Element 2 of set == "by" Element 3 of set == "number" Element 4 of set == "of" Element 5 of set == "separated" Element 6 of set == "spaces" Element 7 of set == "words" 2) Let list == " 1986-187// 13:15:12.184 " delims == " ,/-:" nmax == 20 Then Element 0 of set == "" Element 1 of set == "12.184" Element 2 of set == "13" Element 3 of set == "15" Element 4 of set == "187" Element 5 of set == "1986"
1) String comparisons performed by this routine are Fortran-style: trailing blanks in the input array or key value are ignored. This gives consistent behavior with CSPICE code generated by the f2c translator, as well as with the Fortran SPICE Toolkit. Note that this behavior is not identical to that of the ANSI C library functions strcmp and strncmp.
1) If the size of the set is not large enough to accomodate all of the items in the set, the error SPICE(SETEXCESS) is signaled. 2) The error SPICE(NULLPOINTER) is signaled if either of the input string pointers is null. 3) If the set does not have character type, the error SPICE(TYPEMISMATCH) will be signaled.. 4) An empty input string will result in a single, empty output token. This case is not an error. 5) If the string length associated with set is too short to be usable when constructing a character Fortran-style cell, the error will be diagnosed by routines in the call tree of this routine. See the routine enchar_ for details.
None.
N.J. Bachman (JPL) I.M. Underwood (JPL)
None.
-CSPICE Version 1.0.0, 27-AUG-2002 (NJB) (IMU)
parse a list of items