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slidescript
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Call this v0.1.1

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Pentium44 2021-04-05 04:22:57 -07:00
commit b25886ef13
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4
.gitignore vendored Normal file
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slidescript
*.o
*.swp

29
Makefile Normal file
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# SlideScript makefile
# (C) Copyright 2014-2021 Chris Dorman, some rights reserved (CC-BY-SA 3.0)
VERSION = \"0.1.1\"
EXTRA ?= dev
VERSION_EXTRA = \"$(EXTRA)\"
PREFIX ?= /usr
CC ?= cc
CFLAGS += -O2 -ansi -pedantic -g -Wall -Wextra --param=ssp-buffer-size=2 -fstack-protector-all
CPPFLAGS += -DVERSION=$(VERSION) -DVERSION_EXTRA=$(VERSION_EXTRA) -D_FORTIFY_SOURCE=2
LDFLAGS += -Wl,-O1,--sort-common,--hash-style=gnu,-z,relro
BIN ?= slidescript
OBJECTS = src/main.o src/functions.o src/util.o
all: main
fresh: clean all
main: $(OBJECTS)
$(CC) $(OBJECTS) -o $(BIN) $(LDFLAGS) $(CFLAGS)
clean:
rm -f $(OBJECTS) $(BIN)
install:
install -D $(BIN) $(DESTDIR)/$(PREFIX)/bin/$(BIN)

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README.md Normal file
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SlideScript - v0.1.1-dev
A simple, user friendly scripting language.
====
Using SlideScript
----
* Compile SS using the make command.
* Modify test.ss to learn the basics of SS.
* Run ./slidescript test.ss to execute the script.
Documentation
----
Here is a list of functions and features that SlideScript comes with
at this moment!
* Variable setting
variablename=variabledata
* Commenting! Examples:
# this is a comment
* Read and writing to files! Examples:
write "file.txt" "This will be written to file.txt"
read "file.txt"
* Print Example:
print "Hi everyone!"
* Sleep (Zzz) Example (sleeps for 2 seconds):
sleep 2
Todo list
----
* Add in-script functions
* New static functions
* Network sockets
Done
----
* Read and write from file
* Some simple functions
* Variable support
Changelog
----
V0.1.1
* Added variable handling with a buffer size of 2MB per variable, and
cap of 2048 variables.
* Now operates under the shebang!
(C) Copyright 2014 Chris Dorman, some rights reserved (CC-BY-SA 3.0)

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file.txt Normal file
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This is a test file

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src/deps.h Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define MAX_VAR_NAME_LEN 128
#define MAX_VAR_DATA_LEN 2048
#define MAXVARS 2048

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src/functions.c Normal file
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#include "deps.h"
#include "functions.h"
#include "util.h"
int process_line(char *line)
{
char *tok_srch = strtok(line, "=\" ");
/* if line starts with a comment, skip */
if(strncmp("#",tok_srch,1) == 0)
{
return 0;
}
/* print function */
else if(strncmp("print",tok_srch,5) == 0)
{
tok_srch = strtok(NULL, "\"");
printf("%s\n", tok_srch);
} /* print function */
/* sleep function */
else if(strncmp("sleep",tok_srch,5) == 0)
{
tok_srch = strtok(NULL, " ");
/* if there is a new line, remove it */
if(tok_srch[strlen(tok_srch)-1] == '\n')
{
tok_srch[strlen(tok_srch)-1] = 0;
}
sleep(atoi(tok_srch));
}
/* write */
else if(strncmp("write",tok_srch,5) == 0)
{
FILE* write_file = NULL;
/* strtok to filename of function */
tok_srch = strtok(NULL, "\"");
/* open file */
write_file = fopen(tok_srch, "w");
/* Check if file exists and can be opened */
if(write_file == NULL)
{
printf("SlideScript: error: Cannot write to '%s'.\n", tok_srch);
return 1;
}
/* strtok to the content that will be written to file */
tok_srch = strtok(NULL, "\"");
tok_srch = strtok(NULL, "\"");
fprintf(write_file, "%s\n", tok_srch);
fclose(write_file);
} /* write function */
/* read function */
else if(strncmp("read",tok_srch,4) == 0)
{
char read_line[1024];
FILE *read_file = NULL;
/* strtok to filename of function */
tok_srch = strtok(NULL, "\"");
/* open file */
read_file = fopen(tok_srch, "r");
/* Check if file was opened successfully */
if(read_file == NULL)
{
printf("SlideScript: error: failed to open '%s'.\n", tok_srch);
return 1;
}
while(fgets(read_line, sizeof(read_line), read_file) != NULL)
{
printf("%s", read_line);
}
fclose(read_file);
} /* read function */
else if(strcmp(tok_srch, "\n") != 0 && strcmp(tok_srch, "") != 0) {
if(tok_srch[strlen(tok_srch)-1] == '\n')
{
return 1;
}
else
{
int varc = get_var_count();
char *varname_tmp = tok_srch;
tok_srch = strtok(NULL, "=");
set_var(varc, varname_tmp, tok_srch);
printf("ss: var '%s' -> %s", varname_tmp, get_var_data(varname_tmp));
}
}
return 0;
}

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src/functions.h Normal file
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int process_line(char *line);

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src/main.c Normal file
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/*
SlideScript - Basic scripting for everyday use
(C) Copyright 2014-2021 Chris Dorman - some rights reserved (CC-BY-SA 3.0)
View read me file supplied with this software
*/
#include "deps.h"
#include "util.h"
#include "functions.h"
int main(int argc, char **argv)
{
FILE* script;
char script_line[1024];
if (argc == 1)
{
script = stdin;
}
else
{
parse_args (argc, argv);
script = fopen (argv [1], "r");
}
/* check if config opens successfully */
if(script == NULL) {
printf("Error: failed to open %s.\n", argv[1]);
exit(EXIT_FAILURE);
}
/* Run while loop if file is empty. */
if(script != NULL)
{
/* parse each line from the script in order. */
while(fgets(script_line, sizeof(script_line), script) != NULL)
{
process_line(script_line);
} /* end of while */
} /* file null */
if (argc != 1 ) fclose(script);
exit(EXIT_SUCCESS);
}

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#include "deps.h"
#include "util.h"
char *null = "SlideScript: error: Variable not found!\n";
/*#define tostring(x) #x*/
void set_var(int index, char *varname, char *vardata)
{
strcpy(svars[index].var_name, varname);
strcpy(svars[index].var_data, vardata);
}
char *get_var_data(char *varname)
{
int xx;
for(xx = 0; xx < MAXVARS; xx++)
{
char *varp = svars[xx].var_name;
if(*varp == '\0') continue;
if(strcmp(varp, varname) == 0)
{
return svars[xx].var_data;
}
}
return null;
}
int get_var_count()
{
int yy;
for(yy = 0; yy < MAXVARS; yy++)
{
if(strlen(svars[yy].var_name) > 0)
{
continue;
}
else
{
return yy+1;
}
}
return 0;
}
void parse_args(int argc, char** argv)
{
/* no arguments given */
if(argc == 1)
{
printf("Error: no file supplied. use %s -h for help\n", argv[0]);
exit(EXIT_FAILURE);
}
/* -h flag given, show help */
else if(argc == 2 && strncmp("-h", argv[1], 2) == 0)
{
printf("SlideScript - Simple, everyday use, programming script\n"
"Arguments:\n\n"
"-v\t Display version number\n"
"-h\t Display this help page\n"
"Usage: %s <filename>\n", argv[0]);
exit(EXIT_SUCCESS);
}
/* -v flag given, show version */
else if(argc == 2 && strncmp("-v", argv[1], 2) == 0)
{
printf("SlideScript %s-%s\n", VERSION, VERSION_EXTRA);
exit(EXIT_SUCCESS);
}
}

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struct s_variables
{
char var_name [MAX_VAR_NAME_LEN];
char var_data [MAX_VAR_DATA_LEN];
};
typedef struct s_variables VARS;
VARS svars[MAXVARS];
void set_var(int index, char *varname, char *vardata);
int get_var_count();
char *get_var_data(char *varname);
void parse_args(int argc, char** argv);

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test.ss Executable file
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#!/usr/bin/slidescript
# This is a comment
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
testvar1=set some data into a struct
testvar2=multiple variables work!
futurefeature3=add $testvar2 support :)
print "Writing to file.txt in 1 second"
sleep 1
write "file.txt" "This is a test file"
print "Reading from file.txt:"
read "file.txt"