tcl_backslash(3tcl) [opensolaris man page]

Tcl_Backslash(3TCL)					      Tcl Library Procedures					       Tcl_Backslash(3TCL)

__________________________________________________________________________________________________________________________________________________

NAME

       Tcl_Backslash - parse a backslash sequence

SYNOPSIS

       #include <tcl.h>

       char
       Tcl_Backslash(src, countPtr)

ARGUMENTS

       char   *src	  (in)	    Pointer to a string starting with a backslash.

       int    *countPtr   (out)     If	countPtr isn't NULL, *countPtr gets filled in with number of characters in the backslash sequence, includ-
				    ing the backslash character.
_________________________________________________________________

DESCRIPTION

       The use of Tcl_Backslash is deprecated in favor of Tcl_UtfBackslash.									   |

       This is a utility procedure provided for backwards compatibility with non-internationalized Tcl extensions.  It parses a backslash sequence |
       and returns the low byte of the Unicode character corresponding to the sequence.  Tcl_Backslash modifies *countPtr to contain the number of
       characters in the backslash sequence.

       See the Tcl manual entry for information on the valid backslash sequences.  All of the sequences described in the Tcl manual entry are sup-
       ported by Tcl_Backslash.

SEE ALSO
																	   |
       Tcl(1T), Tcl_UtfBackslash(3TCL)

KEYWORDS

       backslash, parse

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWTcl	      |
       +--------------------+-----------------+
       |Interface Stability | Uncommitted     |
       +--------------------+-----------------+
NOTES

       Source for Tcl is available on http://opensolaris.org.

Tcl									8.1						       Tcl_Backslash(3TCL)

Tcl_SubstObj(3TCL)					      Tcl Library Procedures						Tcl_SubstObj(3TCL)

__________________________________________________________________________________________________________________________________________________

NAME

       Tcl_SubstObj - perform substitutions on Tcl objects

SYNOPSIS

       #include <tcl.h>

       Tcl_Obj *
       Tcl_SubstObj(interp, objPtr, flags)

ARGUMENTS

       Tcl_Interp   *interp	 (in)	   Interpreter	in  which  to  execute	Tcl  scripts and lookup variables.  If an error occurs, the inter-
					   preter's result is modified to hold an error message.

       Tcl_Obj	    *objPtr	 (in)	   A Tcl object containing the string to perform substitutions on.

       int	    flags	 (in)	   ORed combination of flag bits that specify which substitutions to perform.	The  flags  TCL_SUBST_COM-
					   MANDS, TCL_SUBST_VARIABLES and TCL_SUBST_BACKSLASHES are currently supported, and TCL_SUBST_ALL is pro-
					   vided as a convenience for the common case where all substitutions are desired.
_________________________________________________________________

DESCRIPTION

       The Tcl_SubstObj function is used to perform substitutions on strings in the fashion of the subst command.  It gets the value of the string
       contained  in  objPtr  and  scans  it,  copying	characters and performing the chosen substitutions as it goes to an output object which is
       returned as the result of the function.	In the event of an error occurring during the execution of a command or variable substitution, the
       function returns NULL and an error message is left in interp's result.

       Three kinds of substitutions are supported.  When the TCL_SUBST_BACKSLASHES bit is set in flags, sequences that look like backslash substi-
       tutions for Tcl commands are replaced by their corresponding character.

       When the TCL_SUBST_VARIABLES bit is set in flags, sequences that look like variable substitutions for Tcl commands are replaced by the con-
       tents of the named variable.

       When  th TCL_SUBST_COMMANDS bit is set in flags, sequences that look like command substitutions for Tcl commands are replaced by the result
       of evaluating that script.  Where an uncaught continue exception occurs during the evaluation of a command substitution, an empty string is
       substituted  for  the command.  Where an uncaught break exception occurs during the evaluation of a command substitution, the result of the
       whole substitution on objPtr will be truncated at the point immediately before the start of the command	substitution,  and  no	characters
       will be added to the result or substitutions performed after that point.

SEE ALSO

       subst(1T)

KEYWORDS

       backslash substitution, command substitution, variable substitution

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWTcl	      |
       +--------------------+-----------------+
       |Interface Stability | Uncommitted     |
       +--------------------+-----------------+
NOTES

       Source for Tcl is available on http://opensolaris.org.

Tcl									8.4							Tcl_SubstObj(3TCL)