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953
src/OpenFOAM/primitives/strings/stringOps/stringOps.C
Normal file
953
src/OpenFOAM/primitives/strings/stringOps/stringOps.C
Normal file
@ -0,0 +1,953 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
|
||||
\\/ M anipulation |
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-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM is free software: you can redistribute it and/or modify it
|
||||
under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
||||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#include "stringOps.H"
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||||
#include "typeInfo.H"
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||||
#include "OSspecific.H"
|
||||
#include "OStringStream.H"
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|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
//! \cond fileScope
|
||||
// Find the type/position of the ":-" or ":+" alternative values
|
||||
//
|
||||
static inline int findParameterAlternative
|
||||
(
|
||||
const std::string& s,
|
||||
std::string::size_type& pos,
|
||||
std::string::size_type endPos
|
||||
)
|
||||
{
|
||||
while (pos != std::string::npos)
|
||||
{
|
||||
pos = s.find(':', pos);
|
||||
if (pos != std::string::npos)
|
||||
{
|
||||
if (pos < endPos)
|
||||
{
|
||||
// in-range: check for '+' or '-' following the ':'
|
||||
const int altType = s[pos+1];
|
||||
if (altType == '+' || altType == '-')
|
||||
{
|
||||
return altType;
|
||||
}
|
||||
|
||||
++pos; // unknown/unsupported - continue at next position
|
||||
}
|
||||
else
|
||||
{
|
||||
// out-of-range: abort
|
||||
pos = std::string::npos;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
//! \endcond
|
||||
|
||||
|
||||
Foam::string Foam::stringOps::expand
|
||||
(
|
||||
const string& original,
|
||||
const HashTable<string, word, string::hash>& mapping,
|
||||
const char sigil
|
||||
)
|
||||
{
|
||||
string s(original);
|
||||
return inplaceExpand(s, mapping);
|
||||
}
|
||||
|
||||
|
||||
Foam::string& Foam::stringOps::inplaceExpand
|
||||
(
|
||||
string& s,
|
||||
const HashTable<string, word, string::hash>& mapping,
|
||||
const char sigil
|
||||
)
|
||||
{
|
||||
string::size_type begVar = 0;
|
||||
|
||||
// Expand $VAR or ${VAR}
|
||||
// Repeat until nothing more is found
|
||||
while
|
||||
(
|
||||
(begVar = s.find(sigil, begVar)) != string::npos
|
||||
&& begVar < s.size()-1
|
||||
)
|
||||
{
|
||||
if (begVar == 0 || s[begVar-1] != '\\')
|
||||
{
|
||||
// Find end of first occurrence
|
||||
string::size_type endVar = begVar;
|
||||
string::size_type delim = 0;
|
||||
|
||||
// The type/position of the ":-" or ":+" alternative values
|
||||
int altType = 0;
|
||||
string::size_type altPos = string::npos;
|
||||
|
||||
if (s[begVar+1] == '{')
|
||||
{
|
||||
endVar = s.find('}', begVar);
|
||||
delim = 1;
|
||||
|
||||
// check for ${parameter:-word} or ${parameter:+word}
|
||||
if (endVar != string::npos)
|
||||
{
|
||||
altPos = begVar;
|
||||
altType = findParameterAlternative(s, altPos, endVar);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
string::iterator iter = s.begin() + begVar + 1;
|
||||
|
||||
// more generous in accepting keywords than for env variables
|
||||
while
|
||||
(
|
||||
iter != s.end()
|
||||
&&
|
||||
(
|
||||
isalnum(*iter)
|
||||
|| *iter == '.'
|
||||
|| *iter == ':'
|
||||
|| *iter == '_'
|
||||
)
|
||||
)
|
||||
{
|
||||
++iter;
|
||||
++endVar;
|
||||
}
|
||||
}
|
||||
|
||||
if (endVar == string::npos)
|
||||
{
|
||||
// likely parsed '${...' without closing '}' - abort
|
||||
break;
|
||||
}
|
||||
else if (endVar == begVar)
|
||||
{
|
||||
// parsed '${}' or $badChar - skip over
|
||||
begVar = endVar + 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
const word varName
|
||||
(
|
||||
s.substr
|
||||
(
|
||||
begVar + 1 + delim,
|
||||
(
|
||||
(altPos == string::npos ? endVar : altPos)
|
||||
- begVar - 2*delim
|
||||
)
|
||||
),
|
||||
false
|
||||
);
|
||||
|
||||
std::string altValue;
|
||||
if (altPos != string::npos)
|
||||
{
|
||||
// had ":-" or ":+" alternative value
|
||||
altValue = s.substr
|
||||
(
|
||||
altPos + 2,
|
||||
endVar - altPos - 2*delim
|
||||
);
|
||||
}
|
||||
|
||||
|
||||
HashTable<string, word, string::hash>::const_iterator fnd =
|
||||
mapping.find(varName);
|
||||
|
||||
if (fnd != HashTable<string, word, string::hash>::end())
|
||||
{
|
||||
if (altPos != string::npos && altType == '+')
|
||||
{
|
||||
// was found, use ":+" alternative
|
||||
s.std::string::replace
|
||||
(
|
||||
begVar,
|
||||
endVar - begVar + 1,
|
||||
altValue
|
||||
);
|
||||
begVar += altValue.size();
|
||||
}
|
||||
else
|
||||
{
|
||||
// was found, use value
|
||||
s.std::string::replace
|
||||
(
|
||||
begVar,
|
||||
endVar - begVar + 1,
|
||||
*fnd
|
||||
);
|
||||
begVar += (*fnd).size();
|
||||
}
|
||||
}
|
||||
else if (altPos != string::npos && altType == '-')
|
||||
{
|
||||
// was not found, use ":-" alternative
|
||||
s.std::string::replace
|
||||
(
|
||||
begVar,
|
||||
endVar - begVar + 1,
|
||||
altValue
|
||||
);
|
||||
begVar += altValue.size();
|
||||
}
|
||||
else
|
||||
{
|
||||
// substitute with nothing, also for ":+" alternative
|
||||
s.std::string::erase(begVar, endVar - begVar + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
++begVar;
|
||||
}
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
Foam::string Foam::stringOps::expand
|
||||
(
|
||||
const string& original,
|
||||
const dictionary& dict,
|
||||
const char sigil
|
||||
)
|
||||
{
|
||||
string s(original);
|
||||
return inplaceExpand(s, dict, sigil);
|
||||
}
|
||||
|
||||
|
||||
Foam::string Foam::stringOps::getVariable
|
||||
(
|
||||
const word& name,
|
||||
const dictionary& dict,
|
||||
const bool allowEnvVars,
|
||||
const bool allowEmpty
|
||||
)
|
||||
{
|
||||
string value;
|
||||
|
||||
const entry* ePtr = dict.lookupScopedEntryPtr
|
||||
(
|
||||
name,
|
||||
true,
|
||||
false
|
||||
);
|
||||
if (ePtr)
|
||||
{
|
||||
OStringStream buf;
|
||||
// Force floating point numbers to be printed with at least
|
||||
// some decimal digits.
|
||||
buf << fixed;
|
||||
buf.precision(IOstream::defaultPrecision());
|
||||
|
||||
// fail for non-primitiveEntry
|
||||
dynamicCast<const primitiveEntry>
|
||||
(
|
||||
*ePtr
|
||||
).write(buf, true);
|
||||
|
||||
value = buf.str();
|
||||
}
|
||||
else if (allowEnvVars)
|
||||
{
|
||||
value = getEnv(name);
|
||||
|
||||
if (value.empty())
|
||||
{
|
||||
FatalIOErrorIn
|
||||
(
|
||||
"stringOps::getVariable\n"
|
||||
"(\n"
|
||||
" const word&,\n"
|
||||
" const dictionary&,\n"
|
||||
" const bool,\n"
|
||||
" const bool\n"
|
||||
")\n",
|
||||
dict
|
||||
) << "Cannot find dictionary or environment variable "
|
||||
<< name << exit(FatalIOError);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
FatalIOErrorIn
|
||||
(
|
||||
"stringOps::getVariable\n"
|
||||
"(\n"
|
||||
" const word&,\n"
|
||||
" const dictionary&,\n"
|
||||
" const bool,\n"
|
||||
" const bool\n"
|
||||
")\n",
|
||||
dict
|
||||
) << "Cannot find dictionary variable "
|
||||
<< name << exit(FatalIOError);
|
||||
}
|
||||
|
||||
return value;
|
||||
}
|
||||
|
||||
|
||||
Foam::string Foam::stringOps::expand
|
||||
(
|
||||
const string& s,
|
||||
string::size_type& index,
|
||||
const dictionary& dict,
|
||||
const bool allowEnvVars,
|
||||
const bool allowEmpty
|
||||
)
|
||||
{
|
||||
string newString;
|
||||
|
||||
while (index < s.size())
|
||||
{
|
||||
if (s[index] == '$' && s[index+1] == '{')
|
||||
{
|
||||
// Recurse to parse variable name
|
||||
index += 2;
|
||||
string val = expand(s, index, dict, allowEnvVars, allowEmpty);
|
||||
newString.append(val);
|
||||
}
|
||||
else if (s[index] == '}')
|
||||
{
|
||||
return getVariable(newString, dict, allowEnvVars, allowEmpty);
|
||||
}
|
||||
else
|
||||
{
|
||||
newString.append(string(s[index]));
|
||||
}
|
||||
index++;
|
||||
}
|
||||
return newString;
|
||||
}
|
||||
|
||||
|
||||
Foam::string& Foam::stringOps::inplaceExpand
|
||||
(
|
||||
string& s,
|
||||
const dictionary& dict,
|
||||
const bool allowEnvVars,
|
||||
const bool allowEmpty,
|
||||
const char sigil
|
||||
)
|
||||
{
|
||||
string::size_type begVar = 0;
|
||||
|
||||
// Expand $VAR or ${VAR}
|
||||
// Repeat until nothing more is found
|
||||
while
|
||||
(
|
||||
(begVar = s.find(sigil, begVar)) != string::npos
|
||||
&& begVar < s.size()-1
|
||||
)
|
||||
{
|
||||
if (begVar == 0 || s[begVar-1] != '\\')
|
||||
{
|
||||
if (s[begVar+1] == '{')
|
||||
{
|
||||
// Recursive variable expansion mode
|
||||
label stringStart = begVar;
|
||||
begVar += 2;
|
||||
string varValue
|
||||
(
|
||||
expand
|
||||
(
|
||||
s,
|
||||
begVar,
|
||||
dict,
|
||||
allowEnvVars,
|
||||
allowEmpty
|
||||
)
|
||||
);
|
||||
|
||||
s.std::string::replace
|
||||
(
|
||||
stringStart,
|
||||
begVar - stringStart + 1,
|
||||
varValue
|
||||
);
|
||||
|
||||
begVar = stringStart+varValue.size();
|
||||
}
|
||||
else
|
||||
{
|
||||
string::iterator iter = s.begin() + begVar + 1;
|
||||
|
||||
// more generous in accepting keywords than for env variables
|
||||
string::size_type endVar = begVar;
|
||||
while
|
||||
(
|
||||
iter != s.end()
|
||||
&&
|
||||
(
|
||||
isalnum(*iter)
|
||||
|| *iter == '.'
|
||||
|| *iter == ':'
|
||||
|| *iter == '_'
|
||||
)
|
||||
)
|
||||
{
|
||||
++iter;
|
||||
++endVar;
|
||||
}
|
||||
|
||||
const word varName
|
||||
(
|
||||
s.substr
|
||||
(
|
||||
begVar + 1,
|
||||
endVar - begVar
|
||||
),
|
||||
false
|
||||
);
|
||||
|
||||
string varValue
|
||||
(
|
||||
getVariable
|
||||
(
|
||||
varName,
|
||||
dict,
|
||||
allowEnvVars,
|
||||
allowEmpty
|
||||
)
|
||||
);
|
||||
|
||||
s.std::string::replace
|
||||
(
|
||||
begVar,
|
||||
varName.size()+1,
|
||||
varValue
|
||||
);
|
||||
begVar += varValue.size();
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
++begVar;
|
||||
}
|
||||
}
|
||||
|
||||
if (!s.empty())
|
||||
{
|
||||
if (s[0] == '~')
|
||||
{
|
||||
// Expand initial ~
|
||||
// ~/ => home directory
|
||||
// ~OpenFOAM => site/user OpenFOAM configuration directory
|
||||
// ~user => home directory for specified user
|
||||
|
||||
string user;
|
||||
fileName file;
|
||||
|
||||
if ((begVar = s.find('/')) != string::npos)
|
||||
{
|
||||
user = s.substr(1, begVar - 1);
|
||||
file = s.substr(begVar + 1);
|
||||
}
|
||||
else
|
||||
{
|
||||
user = s.substr(1);
|
||||
}
|
||||
|
||||
// NB: be a bit lazy and expand ~unknownUser as an
|
||||
// empty string rather than leaving it untouched.
|
||||
// otherwise add extra test
|
||||
if (user == "OpenFOAM")
|
||||
{
|
||||
s = findEtcFile(file);
|
||||
}
|
||||
else
|
||||
{
|
||||
s = home(user)/file;
|
||||
}
|
||||
}
|
||||
else if (s[0] == '.')
|
||||
{
|
||||
// Expand a lone '.' and an initial './' into cwd
|
||||
if (s.size() == 1)
|
||||
{
|
||||
s = cwd();
|
||||
}
|
||||
else if (s[1] == '/')
|
||||
{
|
||||
s.std::string::replace(0, 1, cwd());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
Foam::string& Foam::stringOps::inplaceExpand
|
||||
(
|
||||
string& s,
|
||||
const dictionary& dict,
|
||||
const char sigil
|
||||
)
|
||||
{
|
||||
string::size_type begVar = 0;
|
||||
|
||||
// Expand $VAR or ${VAR}
|
||||
// Repeat until nothing more is found
|
||||
while
|
||||
(
|
||||
(begVar = s.find(sigil, begVar)) != string::npos
|
||||
&& begVar < s.size()-1
|
||||
)
|
||||
{
|
||||
if (begVar == 0 || s[begVar-1] != '\\')
|
||||
{
|
||||
// Find end of first occurrence
|
||||
string::size_type endVar = begVar;
|
||||
string::size_type delim = 0;
|
||||
|
||||
if (s[begVar+1] == '{')
|
||||
{
|
||||
endVar = s.find('}', begVar);
|
||||
delim = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
string::iterator iter = s.begin() + begVar + 1;
|
||||
|
||||
// more generous in accepting keywords than for env variables
|
||||
while
|
||||
(
|
||||
iter != s.end()
|
||||
&&
|
||||
(
|
||||
isalnum(*iter)
|
||||
|| *iter == '.'
|
||||
|| *iter == ':'
|
||||
|| *iter == '_'
|
||||
)
|
||||
)
|
||||
{
|
||||
++iter;
|
||||
++endVar;
|
||||
}
|
||||
}
|
||||
|
||||
if (endVar == string::npos)
|
||||
{
|
||||
// likely parsed '${...' without closing '}' - abort
|
||||
break;
|
||||
}
|
||||
else if (endVar == begVar)
|
||||
{
|
||||
// parsed '${}' or $badChar - skip over
|
||||
begVar = endVar + 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
const word varName
|
||||
(
|
||||
s.substr
|
||||
(
|
||||
begVar + 1 + delim,
|
||||
endVar - begVar - 2*delim
|
||||
),
|
||||
false
|
||||
);
|
||||
|
||||
|
||||
// lookup in the dictionary
|
||||
const entry* ePtr = dict.lookupScopedEntryPtr
|
||||
(
|
||||
varName,
|
||||
true,
|
||||
false // wildcards disabled. See primitiveEntry
|
||||
);
|
||||
|
||||
// if defined - copy its entries
|
||||
if (ePtr)
|
||||
{
|
||||
OStringStream buf;
|
||||
// Force floating point numbers to be printed with at least
|
||||
// some decimal digits.
|
||||
buf << fixed;
|
||||
buf.precision(IOstream::defaultPrecision());
|
||||
if (ePtr->isDict())
|
||||
{
|
||||
ePtr->dict().write(buf, false);
|
||||
}
|
||||
else
|
||||
{
|
||||
// fail for other types
|
||||
dynamicCast<const primitiveEntry>
|
||||
(
|
||||
*ePtr
|
||||
).write(buf, true);
|
||||
}
|
||||
|
||||
s.std::string::replace
|
||||
(
|
||||
begVar,
|
||||
endVar - begVar + 1,
|
||||
buf.str()
|
||||
);
|
||||
begVar += buf.str().size();
|
||||
}
|
||||
else
|
||||
{
|
||||
// not defined - leave original string untouched
|
||||
begVar = endVar + 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
++begVar;
|
||||
}
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
Foam::string Foam::stringOps::expand
|
||||
(
|
||||
const string& original,
|
||||
const bool allowEmpty
|
||||
)
|
||||
{
|
||||
string s(original);
|
||||
return inplaceExpand(s, allowEmpty);
|
||||
}
|
||||
|
||||
|
||||
Foam::string& Foam::stringOps::inplaceExpand
|
||||
(
|
||||
string& s,
|
||||
const bool allowEmpty
|
||||
)
|
||||
{
|
||||
string::size_type begVar = 0;
|
||||
|
||||
// Expand $VARS
|
||||
// Repeat until nothing more is found
|
||||
while
|
||||
(
|
||||
(begVar = s.find('$', begVar)) != string::npos
|
||||
&& begVar < s.size()-1
|
||||
)
|
||||
{
|
||||
if (begVar == 0 || s[begVar-1] != '\\')
|
||||
{
|
||||
// Find end of first occurrence
|
||||
string::size_type endVar = begVar;
|
||||
string::size_type delim = 0;
|
||||
|
||||
// The type/position of the ":-" or ":+" alternative values
|
||||
int altType = 0;
|
||||
string::size_type altPos = string::npos;
|
||||
|
||||
if (s[begVar+1] == '{')
|
||||
{
|
||||
endVar = s.find('}', begVar);
|
||||
delim = 1;
|
||||
|
||||
// check for ${parameter:-word} or ${parameter:+word}
|
||||
if (endVar != string::npos)
|
||||
{
|
||||
altPos = begVar;
|
||||
altType = findParameterAlternative(s, altPos, endVar);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
string::iterator iter = s.begin() + begVar + 1;
|
||||
|
||||
while
|
||||
(
|
||||
iter != s.end()
|
||||
&& (isalnum(*iter) || *iter == '_')
|
||||
)
|
||||
{
|
||||
++iter;
|
||||
++endVar;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
if (endVar == string::npos)
|
||||
{
|
||||
// likely parsed '${...' without closing '}' - abort
|
||||
break;
|
||||
}
|
||||
else if (endVar == begVar)
|
||||
{
|
||||
// parsed '${}' or $badChar - skip over
|
||||
begVar = endVar + 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
const word varName
|
||||
(
|
||||
s.substr
|
||||
(
|
||||
begVar + 1 + delim,
|
||||
(
|
||||
(altPos == string::npos ? endVar : altPos)
|
||||
- begVar - 2*delim
|
||||
)
|
||||
),
|
||||
false
|
||||
);
|
||||
|
||||
std::string altValue;
|
||||
if (altPos != string::npos)
|
||||
{
|
||||
// had ":-" or ":+" alternative value
|
||||
altValue = s.substr
|
||||
(
|
||||
altPos + 2,
|
||||
endVar - altPos - 2*delim
|
||||
);
|
||||
}
|
||||
|
||||
const string varValue = getEnv(varName);
|
||||
if (varValue.size())
|
||||
{
|
||||
if (altPos != string::npos && altType == '+')
|
||||
{
|
||||
// was found, use ":+" alternative
|
||||
s.std::string::replace
|
||||
(
|
||||
begVar,
|
||||
endVar - begVar + 1,
|
||||
altValue
|
||||
);
|
||||
begVar += altValue.size();
|
||||
}
|
||||
else
|
||||
{
|
||||
// was found, use value
|
||||
s.std::string::replace
|
||||
(
|
||||
begVar,
|
||||
endVar - begVar + 1,
|
||||
varValue
|
||||
);
|
||||
begVar += varValue.size();
|
||||
}
|
||||
}
|
||||
else if (altPos != string::npos)
|
||||
{
|
||||
// use ":-" or ":+" alternative values
|
||||
if (altType == '-')
|
||||
{
|
||||
// was not found, use ":-" alternative
|
||||
s.std::string::replace
|
||||
(
|
||||
begVar,
|
||||
endVar - begVar + 1,
|
||||
altValue
|
||||
);
|
||||
begVar += altValue.size();
|
||||
}
|
||||
else
|
||||
{
|
||||
// was not found, ":+" alternative implies
|
||||
// substitute with nothing
|
||||
s.std::string::erase(begVar, endVar - begVar + 1);
|
||||
}
|
||||
}
|
||||
else if (allowEmpty)
|
||||
{
|
||||
s.std::string::erase(begVar, endVar - begVar + 1);
|
||||
}
|
||||
else
|
||||
{
|
||||
FatalErrorIn
|
||||
(
|
||||
"stringOps::inplaceExpand(string&, const bool)"
|
||||
) << "Unknown variable name '" << varName << "'"
|
||||
<< exit(FatalError);
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
++begVar;
|
||||
}
|
||||
}
|
||||
|
||||
if (!s.empty())
|
||||
{
|
||||
if (s[0] == '~')
|
||||
{
|
||||
// Expand initial ~
|
||||
// ~/ => home directory
|
||||
// ~OpenFOAM => site/user OpenFOAM configuration directory
|
||||
// ~user => home directory for specified user
|
||||
|
||||
string user;
|
||||
fileName file;
|
||||
|
||||
if ((begVar = s.find('/')) != string::npos)
|
||||
{
|
||||
user = s.substr(1, begVar - 1);
|
||||
file = s.substr(begVar + 1);
|
||||
}
|
||||
else
|
||||
{
|
||||
user = s.substr(1);
|
||||
}
|
||||
|
||||
// NB: be a bit lazy and expand ~unknownUser as an
|
||||
// empty string rather than leaving it untouched.
|
||||
// otherwise add extra test
|
||||
if (user == "OpenFOAM")
|
||||
{
|
||||
s = findEtcFile(file);
|
||||
}
|
||||
else
|
||||
{
|
||||
s = home(user)/file;
|
||||
}
|
||||
}
|
||||
else if (s[0] == '.')
|
||||
{
|
||||
// Expand a lone '.' and an initial './' into cwd
|
||||
if (s.size() == 1)
|
||||
{
|
||||
s = cwd();
|
||||
}
|
||||
else if (s[1] == '/')
|
||||
{
|
||||
s.std::string::replace(0, 1, cwd());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
Foam::string Foam::stringOps::trimLeft(const string& s)
|
||||
{
|
||||
if (!s.empty())
|
||||
{
|
||||
string::size_type beg = 0;
|
||||
while (beg < s.size() && isspace(s[beg]))
|
||||
{
|
||||
++beg;
|
||||
}
|
||||
|
||||
if (beg)
|
||||
{
|
||||
return s.substr(beg);
|
||||
}
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
Foam::string& Foam::stringOps::inplaceTrimLeft(string& s)
|
||||
{
|
||||
if (!s.empty())
|
||||
{
|
||||
string::size_type beg = 0;
|
||||
while (beg < s.size() && isspace(s[beg]))
|
||||
{
|
||||
++beg;
|
||||
}
|
||||
|
||||
if (beg)
|
||||
{
|
||||
s.erase(0, beg);
|
||||
}
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
Foam::string Foam::stringOps::trimRight(const string& s)
|
||||
{
|
||||
if (!s.empty())
|
||||
{
|
||||
string::size_type sz = s.size();
|
||||
while (sz && isspace(s[sz-1]))
|
||||
{
|
||||
--sz;
|
||||
}
|
||||
|
||||
if (sz < s.size())
|
||||
{
|
||||
return s.substr(0, sz);
|
||||
}
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
Foam::string& Foam::stringOps::inplaceTrimRight(string& s)
|
||||
{
|
||||
if (!s.empty())
|
||||
{
|
||||
string::size_type sz = s.size();
|
||||
while (sz && isspace(s[sz-1]))
|
||||
{
|
||||
--sz;
|
||||
}
|
||||
|
||||
s.resize(sz);
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
Foam::string Foam::stringOps::trim(const string& original)
|
||||
{
|
||||
return trimLeft(trimRight(original));
|
||||
}
|
||||
|
||||
|
||||
Foam::string& Foam::stringOps::inplaceTrim(string& s)
|
||||
{
|
||||
inplaceTrimRight(s);
|
||||
inplaceTrimLeft(s);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
// ************************************************************************* //
|
||||
Reference in New Issue
Block a user