Add strcasechr and strcasechrnul

Signed-off-by: Mattias Andrée <maandree@kth.se>

5 files changed, 157 insertions, 0 deletions

diff --git a/man/libsimple_strcasechr.3 b/man/libsimple_strcasechr.3
new file mode 100644
index 0000000..97fabc0
--- /dev/null
+++ b/man/libsimple_strcasechr.3
@@ -0,0 +1,78 @@
+.TH LIBSIMPLE_STRCASECHR 3 2018-10-21 libsimple
+.SH NAME
+libsimple_strcasechr \- find a character in a string
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+char *libsimple_strcasechr(const char *\fIs\fP, int \fIc\fP);
+
+#ifndef strcasechr
+# define strcasechr libsimple_strcasechr
+#endif
+.fi
+
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_strcasechr ()
+function scans the string
+.I s
+for the first occurence of the character
+.I c
+(it is converted to a
+.BR char ).
+If no such character exist in the string,
+the string's end is returned.
+.PP
+The comparison is case-insensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_strcasechr ()
+function returns the pointer
+.I s
+with a minimal offset such that
+.IR tolower(*r)==tolower(c) ,
+where
+.I r
+is the returned pointer, if no such
+offset exists, it returns
+.IR NULL .
+.SH ERRORS
+The
+.BR libsimple_strcasechr ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_strcasechr ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_strcasechr ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_strcasechr ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_strcasechrnul (3),
+.BR strchr (3)
diff --git a/man/libsimple_strcasechrnul.3 b/man/libsimple_strcasechrnul.3
new file mode 100644
index 0000000..a92387d
--- /dev/null
+++ b/man/libsimple_strcasechrnul.3
@@ -0,0 +1,76 @@
+.TH LIBSIMPLE_STRCASECHRNUL 3 2018-10-21 libsimple
+.SH NAME
+libsimple_strcasechrnul \- find a character in a string
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+char *libsimple_strcasechrnul(const char *\fIs\fP, int \fIc\fP);
+
+#ifndef strcasechrnul
+# define strcasechrnul libsimple_strcasechrnul
+#endif
+.fi
+
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_strcasechrnul ()
+function scans the string
+.I s
+for the first occurence of the character
+.I c
+(it is converted to a
+.BR char ).
+If no such character exist in the string,
+the string's end is returned.
+.PP
+The comparison is case-insensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_strcasechrnul ()
+function returns the pointer
+.I s
+with a minimal offset such that
+.IR tolower(*r)==tolower(c)||!*r ,
+where
+.I r
+is the returned pointer.
+.SH ERRORS
+The
+.BR libsimple_strcasechrnul ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_strcasechrnul ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_strcasechrnul ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_strcasechrnul ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_strcasechr (3),
+.BR libsimple_strchrnul (3)
diff --git a/man/libsimple_strchrnul.3 b/man/libsimple_strchrnul.3
index 25d6618..8d8f53a 100644
--- a/man/libsimple_strchrnul.3
+++ b/man/libsimple_strchrnul.3
@@ -72,5 +72,6 @@ None.
 .SH BUGS
 None.
 .SH SEE ALSO
+.BR libsimple_strcasechrnul (3),
 .BR libsimple_strend (3),
 .BR strchr (3)
diff --git a/man/strcasechr.3libsimple b/man/strcasechr.3libsimple
new file mode 120000
index 0000000..719a07d
--- /dev/null
+++ b/man/strcasechr.3libsimple
@@ -0,0 +1 @@
+libsimple_strcasechr.3
\ No newline at end of file
diff --git a/man/strcasechrnul.3libsimple b/man/strcasechrnul.3libsimple
new file mode 120000
index 0000000..ff1b0db
--- /dev/null
+++ b/man/strcasechrnul.3libsimple
@@ -0,0 +1 @@
+libsimple_strcasechrnul.3
\ No newline at end of file