amath  1.8.5
Simple command line calculator
save.cpp
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1 /*-
2  * Copyright (c) 2014-2018 Carsten Sonne Larsen <cs@innolan.net>
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29 
30 #include "save.h"
31 #include "amath.h"
32 #include "loc/text.h"
33 #include "system/program.h"
34 
35 SaveStatement::SaveStatement(const char* file)
37 {
38  AllocAndCopy(&this->file, file);
39 }
40 
42 {
43  delete [] file;
44 }
45 
47 {
48  const char* vars = Program->Variables->ListDefinitions();
49  const char* funcs = Program->Functions->ListDefinitions();
50 
51  if (vars == nullptr && funcs == nullptr)
52  {
53  return static_cast<char*>(HELPSAVENOTH);
54  }
55 
56  int len = 1;
57  len += vars != nullptr ? StrLen(vars) : 0;
58  len += funcs != nullptr ? StrLen(funcs) : 0;
59 
60  CharBuffer* text = new CharBuffer(len);
61  text->Empty();
62 
63  if (vars != nullptr)
64  {
65  text->Append(vars);
66  }
67  if (funcs != nullptr)
68  {
69  text->Append(funcs);
70  }
71 
72  bool success = Program->Filesystem->SaveTextFile(file, text->GetString());
73  delete text;
74 
75  return static_cast<char*>(success ? HELPSAVESUCC : HELPSAVEFAIL);
76 }
void Empty()
Definition: charbuf.cpp:218
char * GetString() const
Definition: charbuf.cpp:306
Base class for all statements in a syntax tree.
Definition: node.h:40
CharBuffer(unsigned int size)
Initialize while allocating specified amount of memory.
Definition: charbuf.cpp:49
class FilesystemBase * Filesystem
Definition: program.h:74
void Append(const char *source)
Definition: charbuf.cpp:262
char * ListDefinitions() const
Definition: values.cpp:223
char * file
Definition: save.h:43
class FunctionList * Functions
Definition: program.h:78
#define HELPSAVESUCC
Definition: text.h:94
StatementNode()
Definition: node.cpp:34
class VariableList * Variables
Definition: program.h:77
#define HELPSAVENOTH
Definition: text.h:96
int StrLen(const char *string)
Get the length of a null terminated string.
Definition: strlen.c:34
#define HELPSAVEFAIL
Definition: text.h:95
char * Execute()
Definition: save.cpp:46
unsigned int AllocAndCopy(char **destination, const char *source)
Allocate memory and copy a string into the array.
Definition: alloccpy.c:40
virtual bool SaveTextFile(const char *name, const char *text)=0
Encapsulate an character array which can be used as a string.
Definition: charbuf.h:44
char * ListDefinitions() const
~SaveStatement()
Definition: save.cpp:41
SaveStatement(const char *file)
Definition: save.cpp:35