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slidescript
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Call this v0.6.0

master
Pentium44 2021-05-12 11:04:27 -07:00
parent 17e53351a4
commit e2a3beafe0
8 changed files with 191 additions and 24 deletions
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2
Makefile
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@ -2,7 +2,7 @@
# (C) Copyright 2014-2021 Chris Dorman, some rights reserved (GPLv2)
# Some changes and tweaks from Menchers
VERSION = \"0.5.4\"
VERSION = \"0.6.0\"
VERSION_EXTRA = \"$(EXTRA)\"
PREFIX ?= /usr

2
Makefile.musl
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@ -2,7 +2,7 @@
# (C) Copyright 2014-2021 Chris Dorman, some rights reserved (GPLv2)
# Some changes and tweaks from Menchers
VERSION = \"0.5.4\"
VERSION = \"0.6.0\"
VERSION_EXTRA = \"$(EXTRA)\"
PREFIX ?= /usr

25
docs/README.txt
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@ -13,15 +13,7 @@ Compiling
* Modify test.ss to learn the basics of SS.
* Run ./test.ss to execute the script.
***NOTE: if compiling on OSX/BSD, please uncomment #define BSD in src/config.h***
-----
Directory bins/
-----
Since slidescript is so small, I made a collection of current builds of slidescript
in bins/*
These are built on Debian 10 using GCC 9.2.0, and current TCC.
***NOTE: if compiling on OSX/BSD, please uncomment #define BSD in src/config.h
-----
Documentation
@ -32,10 +24,12 @@ at this moment!
* Commenting! Examples:
* # Comment is real in this one
* Comp and loop functions:
* Comp, loop, if, and ifn functions:
* comp: "1" "1" -> compares integer 1 and 1 -> returns true
* comp: "true" "false" -> compares string true and false -> returns false
* loop: 3; print "Hello world!" -> Will loop print "Hello world!" 3 times.
* if: true; print "True!" -> Prints "True!"
* ifn: false; print "False!" -> Prints "False!"
* Read, write, and cat(enate) functions. Examples:
* write "file.txt" "This will be written to file.txt"
@ -85,6 +79,7 @@ at this moment!
* filename=file.txt -> filename
* filedata=File '%filename%' is being moved to moo -> %filename% is populated as file.txt
* write "%filename%" "%filedata%" -> writes filedata contents to file.txt as expected.
* unset "filename" -> Removes variable data from session memory to be redefinied / reused.
* Decoding and encoding strings
* encode "Regular string" -> Converts to encrypted string 'Uhjvqds#xuulqj'
@ -152,6 +147,16 @@ Changelog
Changes between version bumps in SlideScript. Hoping to have a lightweight top-down scripting language
by V1.0.0 release! From there it will be molding and preserving the art.
* V0.6.0
* Multiple dynamic memory bug fixes, SlideScript is 99% dynamic on memory use
* Included if, and ifn functions for comp, isfile, isdir, etc return values.
* Incorporated unset function to wipe variable data within the same session.
* Additions to help command
* Code cleanup
* Fixed large bug when attempting to use multiple variables within one function.
* Fixed compile warnings on some systems
* Fixed system uncompatibility for Windows systems, should work cross-compiled!
* V0.5.4
* Added memory management framework for dynamic memory handling
* tar.c cleanup

23
docs/examples/functions.ss
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@ -93,3 +93,26 @@ calc "46 / 3.4"
# Executes the ss_exec_command variable data, 'ls'
print "Testing exec function on system"
exec "%ss_exec_command%"
# comp, loop, if, and ifn examples
# Check to see if /bin/sh exists
exist=`isfile "/bin/sh"`
# Report findings on /bin/sh
if: %exist%; print "/bin/sh exists!"
ifn: %exist%; printf "/bin/sh does not exist!"
# Loop functions, example
loop: 3; print "Loop print 3 times"
# Compare strings
compvar=`comp: "matching" "match"`
ifn: %compvar%; print "Strings don't match"
# Unset compvar
unset "compvar"
# Set again, and compare integers
compvar=`comp: "245" "245"`
if: %compvar%; print "Values match!"

5
src/inc/deps.h
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@ -99,7 +99,7 @@
" read \"<filename>\" |" \
" write \"<filename>\" \"<string>\"\n" \
" cat \"<filename>\" \"<string>\" |" \
" exec \"<cmd>\"\n" \
" exec \"<cmd>\" | unset \"<variable>\"\n" \
"\n-[Variables, Pipes, and Backquoting]-\nExample:\n" \
" FORK=`isfile \"index.html\"` -> returns 1 on find\n" \
" write \"port.txt\" \"8888\" -> writes '8888' to port.txt\n" \
@ -108,7 +108,8 @@
"backquote function execution. Return values are saved as variables.\n" \
"\n-[Specials]-\nExample:\n" \
"comp: \"<int1/str1>\" \"<int2/str2>\" -> returns (true|false)\n" \
"loop: <int>; <function> -> loops function for 'int' times\n"
"loop: <int>; <function> -> loops function for 'int' times\n" \
"if(n): <true/false/1/0>; <function> -> Processes function if true or false\n"
// Purpose: UX3 basic definitions
// License: MIT/X. (c) OldCoder (Robert Kiraly) 1987-2021.

1
src/inc/vars.h
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@ -25,4 +25,5 @@ UX3_EXT QLIST QM_VARIABLES [ONE]; // Dynamic-memory QLIST
void set_var(int index, char *varname, char *vardata);
int get_var_count();
char *get_var_data(char *varname);
char *clear_var_data(char *varname);
char *parse_vars(char *string);

130
src/lexer.c
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@ -60,8 +60,105 @@ char *process_line(char *line)
// Lets add if and loop statements, make this
// Somewhat usable as a language in other instances
// If statement, processes string if first arg is true
else if(strncmp("if:", tok_srch, 3) == 0)
{
char *proc_return;
char *dobuf;
// We have an if statement
tok_srch = strtok(NULL, ";");
if(tok_srch == NULL)
{
x_warn("ss:warn:loop statement requires arguments");
return NULL;
}
// Check if there's anything after the first quote
if(strcmp(tok_srch, "\n") == 0 ||
strcmp(tok_srch, " \n") == 0 ||
strcmp(tok_srch, " ") == 0)
{
x_warn("ss:warn:loop syntax error, missing argument?");
return NULL;
}
compbuf = qmalloc(QM_SS, (strlen(parse_vars(tok_srch)) + 1));
*compbuf = '\0';
strcat(compbuf, parse_vars(tok_srch));
tok_srch = strtok(NULL, ";");
if(tok_srch == NULL)
{
x_warn("ss:warn:loop syntax error, missing last argument?");
return NULL;
}
dobuf = qmalloc(QM_SS, (strlen(parse_vars(tok_srch)) + 1));
*dobuf = '\0';
strcat(dobuf, parse_vars(tok_srch));
if((strncmp("true", compbuf, 4) == 0) || (strncmp("1", compbuf, 1) == 0))
{
proc_return = process_line(parse_vars(dobuf));
printf("%s\n", proc_return);
fflush(stdout);
}
return NULL;
}
else if(strncmp("ifn:", tok_srch, 4) == 0)
{
char *proc_return;
char *dobuf;
// We have an if statement
tok_srch = strtok(NULL, ";");
if(tok_srch == NULL)
{
x_warn("ss:warn:loop statement requires arguments");
return NULL;
}
// Check if there's anything after the first quote
if(strcmp(tok_srch, "\n") == 0 ||
strcmp(tok_srch, " \n") == 0 ||
strcmp(tok_srch, " ") == 0)
{
x_warn("ss:warn:loop syntax error, missing argument?");
return NULL;
}
compbuf = qmalloc(QM_SS, (strlen(parse_vars(tok_srch)) + 1));
*compbuf = '\0';
strcat(compbuf, parse_vars(tok_srch));
tok_srch = strtok(NULL, ";");
if(tok_srch == NULL)
{
x_warn("ss:warn:loop syntax error, missing last argument?");
return NULL;
}
dobuf = qmalloc(QM_SS, (strlen(parse_vars(tok_srch)) + 1));
*dobuf = '\0';
strcat(dobuf, parse_vars(tok_srch));
if((strncmp("false", compbuf, 4) == 0) || (strncmp("0", compbuf, 1) == 0))
{
proc_return = process_line(parse_vars(dobuf));
printf("%s\n", proc_return);
fflush(stdout);
}
return NULL;
}
// Loop
else if(strncmp("loop:", tok_srch, 4) == 0)
else if(strncmp("loop:", tok_srch, 5) == 0)
{
int loop_count, ii;
char *proc_return;
@ -97,13 +194,6 @@ char *process_line(char *line)
return NULL;
}
// Check if there's anything after the first quote
if(strcmp(tok_srch, "\n") == 0 || strcmp(tok_srch, " \n") == 0)
{
x_warn("ss:warn:if syntax error, missing first argument?");
return NULL;
}
loopbuf = qmalloc(QM_SS, (strlen(parse_vars(tok_srch)) + 1));
*loopbuf = '\0';
strcat(loopbuf, parse_vars(tok_srch));
@ -121,7 +211,6 @@ char *process_line(char *line)
return NULL;
}
// IF statement
else if(strncmp("comp:", tok_srch, 5) == 0)
{
@ -182,6 +271,29 @@ char *process_line(char *line)
}
}
// Unset variable function
else if(strncmp("unset", tok_srch, 5) == 0)
{
char *varname;
tok_srch = strtok(NULL, "\"");
if(tok_srch == NULL)
{
x_warn("ss:warn:unset syntax error, missing quote?");
return NULL;
}
if(strtok(NULL, "\"") == NULL)
{
x_warn("ss:warn:unset syntax error, missing end quote?");
return NULL;
}
varname = clear_var_data(tok_srch);
return varname;
}
// Change directory
else if(strncmp("backdir", tok_srch, 7) == 0)
{

27
src/vars.c
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@ -48,7 +48,7 @@ char *get_var_data (char *varname)
{
char *varp = svars [xx].var_name;
if (*varp == '\0') continue;
if(strcmp (varp, varname) == ZERO)
{
return svars [xx].var_data;
@ -58,6 +58,31 @@ char *get_var_data (char *varname)
return NULL;
}
//--------------------------------------------------------------------
// Clear variable data by name
//--------------------------------------------------------------------
char *clear_var_data (char *varname)
{
int xx;
for(xx = ZERO; xx < MAXVARS; xx++)
{
char *varp = svars [xx].var_name;
if (*varp == '\0') continue;
if(strcmp (varp, varname) == ZERO)
{
qfree(svars[xx].var_data);
strcpy(svars[xx].var_name, "\0");
return "Variable free'd";
}
}
return NULL;
}
//--------------------------------------------------------------------
int get_var_count()