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authorKaren Arutyunov <karen@codesynthesis.com>2016-08-08 00:49:04 +0300
committerKaren Arutyunov <karen@codesynthesis.com>2016-08-10 14:53:04 +0300
commitaa0370b08ea8a1ad679a746c7be21a874f264fb6 (patch)
tree653f6b1d8ed888691f5af5a1e57516050d71d3cb /butl
parentde07f993a54f7443db685798ae9225bbd49f0231 (diff)
Add ucase(), lcase(), casecmp(), alpha(), digit(), alnum()
Diffstat (limited to 'butl')
-rw-r--r--butl/buildfile2
-rw-r--r--butl/path4
-rw-r--r--butl/path.ixx5
-rw-r--r--butl/process.cxx4
-rw-r--r--butl/sha256.cxx8
-rw-r--r--butl/utility65
-rw-r--r--butl/utility.ixx136
7 files changed, 212 insertions, 12 deletions
diff --git a/butl/buildfile b/butl/buildfile
index d2d16ac..7e65b6c 100644
--- a/butl/buildfile
+++ b/butl/buildfile
@@ -20,7 +20,7 @@ lib{butl}: \
{hxx txx }{ string-table } \
{hxx cxx}{ timestamp } \
{hxx cxx}{ triplet } \
-{hxx }{ utility } \
+{hxx ixx }{ utility } \
{hxx }{ vector-view } \
{hxx }{ version } \
{hxx cxx}{ win32-utility }
diff --git a/butl/path b/butl/path
index 7322a15..2040f5f 100644
--- a/butl/path
+++ b/butl/path
@@ -14,6 +14,8 @@
#include <butl/export>
+#include <butl/utility>
+
namespace butl
{
// Wish list/ideas for improvements.
@@ -195,7 +197,7 @@ namespace butl
for (size_type i (0), n (ln < rn ? ln : rn); i != n; ++i)
{
#ifdef _WIN32
- C lc (tolower (l[i])), rc (tolower (r[i]));
+ C lc (lcase (l[i])), rc (lcase (r[i]));
#else
C lc (l[i]), rc (r[i]);
#endif
diff --git a/butl/path.ixx b/butl/path.ixx
index 26a9b3d..d1fa34c 100644
--- a/butl/path.ixx
+++ b/butl/path.ixx
@@ -3,7 +3,6 @@
// license : MIT; see accompanying LICENSE file
#ifdef _WIN32
-# include <cctype> // tolower(), toupper()
# include <cwctype> // towlower(), towupper()
#endif
@@ -14,7 +13,7 @@ namespace butl
inline char path_traits<char>::
tolower (char c)
{
- return std::tolower (c);
+ return lcase (c);
}
template <>
@@ -28,7 +27,7 @@ namespace butl
inline char path_traits<char>::
toupper (char c)
{
- return std::toupper (c);
+ return ucase (c);
}
template <>
diff --git a/butl/process.cxx b/butl/process.cxx
index 6b41165..75e8718 100644
--- a/butl/process.cxx
+++ b/butl/process.cxx
@@ -12,7 +12,6 @@
# include <io.h> // _open_osfhandle(), _get_osfhandle(), _close()
# include <fcntl.h> // _O_TEXT
-# include <string.h> // _stricmp() @@ CASE
# include <stdlib.h> // _MAX_PATH, getenv()
# include <sys/types.h> // stat
# include <sys/stat.h> // stat(), S_IS*
@@ -25,6 +24,7 @@
#include <cassert>
+#include <butl/utility> // casecmp()
#include <butl/fdstream> // fdnull(), fdclose()
using namespace std;
@@ -288,7 +288,7 @@ namespace butl
// support those, it will have to be handled differently.
//
const char* e (r.extension ());
- if (e == nullptr || _stricmp (e, "exe") != 0) // @@ CASE
+ if (e == nullptr || casecmp (e, "exe") != 0)
r += ".exe";
// Only check that the file exists since the executable mode is set
diff --git a/butl/sha256.cxx b/butl/sha256.cxx
index 7c0b21e..fb1fcc8 100644
--- a/butl/sha256.cxx
+++ b/butl/sha256.cxx
@@ -9,9 +9,11 @@
#include <stdint.h>
#include <stddef.h> // size_t
-#include <cctype> // isxdigit(), toupper(), tolower()
+#include <cctype> // isxdigit()
#include <stdexcept> // invalid_argument
+#include <butl/utility> // ucase(), lcase()
+
using SHA256_CTX = butl::sha256::context;
extern "C"
@@ -101,7 +103,7 @@ namespace butl
if (i > 0 && i % 2 == 0)
f += ":";
- f += toupper (c);
+ f += ucase (c);
}
return f;
@@ -131,7 +133,7 @@ namespace butl
if (!isxdigit (c))
bad ();
- s += tolower (c);
+ s += lcase (c);
}
}
diff --git a/butl/utility b/butl/utility
index 101d503..757edc2 100644
--- a/butl/utility
+++ b/butl/utility
@@ -5,14 +5,73 @@
#ifndef BUTL_UTILITY
#define BUTL_UTILITY
-#include <cstddef> // std::size_t
+#include <string>
+#include <cstddef> // size_t
#include <utility> // forward()
-#include <cstring> // strcmp
+#include <cstring> // strcmp(), strlen()
#include <butl/export>
namespace butl
{
+ // Convert ASCII character/string case. If there is no upper/lower case
+ // counterpart, leave the character unchanged. The POSIX locale (also known
+ // as C locale) must be the current application locale. Otherwise the
+ // behavior is undefined.
+ //
+ // Note that the POSIX locale specifies behaviour on data consisting
+ // entirely of characters from the portable character set (subset of ASCII
+ // including 103 non-negative characters and English alphabet letters in
+ // particular) and the control character set (more about them at
+ // http://pubs.opengroup.org/onlinepubs/009696899/basedefs/xbd_chap06.html).
+ //
+ // Also note that according to the POSIX locale definition the case
+ // conversion can be applied only to [A-Z] and [a-z] character ranges being
+ // translated to each other (more about that at
+ // http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap07.html#tag_07_02)
+ //
+ char ucase (char);
+ std::string ucase (const char*, std::size_t = std::string::npos);
+ std::string ucase (const std::string&);
+ std::string& ucase (std::string&);
+ LIBBUTL_EXPORT void ucase (char*, std::size_t);
+
+ char lcase (char);
+ std::string lcase (const char*, std::size_t = std::string::npos);
+ std::string lcase (const std::string&);
+ std::string& lcase (std::string&);
+ LIBBUTL_EXPORT void lcase (char*, std::size_t);
+
+ // Compare ASCII characters/strings ignoring case. Behave as if characters
+ // had been converted to the lower case and then byte-compared. Return a
+ // negative, zero or positive value if the left hand side is less, equal or
+ // greater than the right hand side, respectivelly. The POSIX locale (also
+ // known as C locale) must be the current application locale. Otherwise the
+ // behavior is undefined.
+ //
+ // The optional size argument specifies the maximum number of characters
+ // to compare.
+ //
+ int casecmp (char, char);
+
+ int casecmp (const std::string&, const std::string&,
+ std::size_t = std::string::npos);
+
+ int casecmp (const std::string&, const char*,
+ std::size_t = std::string::npos);
+
+ LIBBUTL_EXPORT int casecmp (const char*, const char*,
+ std::size_t = std::string::npos);
+
+ bool
+ alpha (char);
+
+ bool
+ digit (char);
+
+ bool
+ alnum (char);
+
// Key comparators (i.e., to be used in sets, maps, etc).
//
struct compare_c_string
@@ -67,4 +126,6 @@ namespace butl
reverse_iterate (T&& x) {return reverse_range<T> (std::forward<T> (x));}
}
+#include <butl/utility.ixx>
+
#endif // BUTL_UTILITY
diff --git a/butl/utility.ixx b/butl/utility.ixx
new file mode 100644
index 0000000..b0d83c9
--- /dev/null
+++ b/butl/utility.ixx
@@ -0,0 +1,136 @@
+// file : butl/utility.ixx -*- C++ -*-
+// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
+// license : MIT; see accompanying LICENSE file
+
+#ifndef _WIN32
+# include <strings.h> // strcasecmp(), strncasecmp()
+#else
+# include <string.h> // _stricmp(), _strnicmp()
+#endif
+
+#include <cctype> // toupper(), tolower(), isalpha(), isdigit(), isalnum()
+
+namespace butl
+{
+ inline char
+ ucase (char c)
+ {
+ return std::toupper (c);
+ }
+
+ inline std::string
+ ucase (const char* s, std::size_t n)
+ {
+ std::string r (s, n == std::string::npos ? std::strlen (s) : n);
+ return ucase (r);
+ }
+
+ inline std::string
+ ucase (const std::string& s)
+ {
+ return ucase (s.c_str (), s.size ());
+ }
+
+ inline std::string&
+ ucase (std::string& s)
+ {
+ if (size_t n = s.size ())
+ {
+ s.front () = s.front (); // Force copy in CoW.
+ ucase (const_cast<char*> (s.data ()), n);
+ }
+ return s;
+ }
+
+ inline void
+ ucase (char* s, std::size_t n)
+ {
+ for (const char* e (s + n); s != e; ++s)
+ *s = ucase (*s);
+ }
+
+ inline char
+ lcase (char c)
+ {
+ return std::tolower (c);
+ }
+
+ inline std::string
+ lcase (const char* s, std::size_t n)
+ {
+ std::string r (s, n == std::string::npos ? std::strlen (s) : n);
+ return lcase (r);
+ }
+
+ inline std::string
+ lcase (const std::string& s)
+ {
+ return lcase (s.c_str (), s.size ());
+ }
+
+ inline std::string&
+ lcase (std::string& s)
+ {
+ if (size_t n = s.size ())
+ {
+ s.front () = s.front (); // Force copy in CoW.
+ lcase (const_cast<char*> (s.data ()), n);
+ }
+ return s;
+ }
+
+ inline void
+ lcase (char* s, std::size_t n)
+ {
+ for (const char* e (s + n); s != e; ++s)
+ *s = lcase (*s);
+ }
+
+ inline int
+ casecmp (char l, char r)
+ {
+ l = lcase (l);
+ r = lcase (r);
+ return l < r ? -1 : (l > r ? 1 : 0);
+ }
+
+ inline int
+ casecmp (const std::string& l, const std::string& r, std::size_t n)
+ {
+ return casecmp (l.c_str (), r.c_str (), n);
+ }
+
+ inline int
+ casecmp (const std::string& l, const char* r, std::size_t n)
+ {
+ return casecmp (l.c_str (), r, n);
+ }
+
+ inline int
+ casecmp (const char* l, const char* r, std::size_t n)
+ {
+#ifndef _WIN32
+ return n == std::string::npos ? strcasecmp (l, r) : strncasecmp (l, r, n);
+#else
+ return n == std::string::npos ? _stricmp (l, r) : _strnicmp (l, r, n);
+#endif
+ }
+
+ inline bool
+ alpha (char c)
+ {
+ return std::isalpha (c);
+ }
+
+ inline bool
+ digit (char c)
+ {
+ return std::isdigit (c);
+ }
+
+ inline bool
+ alnum (char c)
+ {
+ return std::isalnum (c);
+ }
+}