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|`(quote x)`|`quote` evaluates none of its arguments.|This is equivalent to the `'expr` syntactic sugar.|
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|`(for x list ...)`|`for` evaluates only its list argument.|`for` iterates through the list storing each element in `x`, and then evaluating all of the rest of the values in the `for` body. It then returns the last value evaluated.|
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|`(while cond ...)`|`while` evaluates only its cond argument.|`while` evaluates its condition expression every iteration before running. If it is true, it continues to evaluate every expression in the `while` body. It then returns the last value evaluated.|
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|`(and ...)`|`and` evaluates logical and on its list argument.|`and` evaluates only until its true, it stops when becomes false.
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|`(or ...)`|`or` evaluates logical or on its list argument.|`or` evaluates while its false, it stops when becomes true.|
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|`(benchmark msg_string ...)`|`benchmark` takes a list of s-expressions and evaluates them in the order they were given (in the current scope), and then returns the result of the last s-expression and prints msg_string and timing info.||
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## Library
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|Signature|Description|Return values|
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|`(string-replace source substr replacement)`|Replace a substring with a replacement string in a source string|`>>> (string-replace "abcdefg" "de" "DE") => "abcDEfg"`|
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|`(string-regex? where regex)`| Returns true if where contains regex|`>>> (string-regex? "aba123cdefg" "[0-9]+") => 1`|
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|`(string-pad str len char rpad_lpad)`|||
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|`(string-lpad str len char)`|||
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|`(string-rpad str len char)`|||
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|`(string-split str separator)`|||
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`(string-rltrim str len RKRRKR)`| ||
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`(string-ltrim str)`|Removes " \n\r\t" from the begininfg of str||
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`(string-rtrim str)`|Removes " \n\r\t" from the end of str||
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`(string-trim str)`|Removes " \n\r\t" from the both strart and end of str||
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`(string-case str RKRRKR)`|||
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`(string-upcase str)`|||
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`(string-downcase str)`|||
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`(endl)`|||
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|`(int value)`|Cast an item to an int|`>>> (int 3.41) => 3`|
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|`(float value)`|Cast item to a float|`>>> (int 3.41) => 3.14`|
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|`(string value)`|Cast int or float item to a string|`>>> (string 3.14) => "3.14"`|
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|`(parse ..)`|||
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|`(make-list-of size value)`|Makes list with size elements of values||
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|`(make-list size)`|Makes list of nil values with size length||
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|`(memeber lst item)`|Returns 1 when item is inluded in lst otherwise 0||
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|`(uniq list)`|||
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|`(flatten list)`|||
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|`(benchmark msg_string code..)`|Benchmarks a block of expressions|Returns value od benchmarked code|
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|`(quick-sort-by list cmp)`|||
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|`(quick-sort list)`|||
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|`(not c)`|Logical NOT of c||
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|`(new n)`|Negates number||
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|`(is-pos? n)`|Returns true if n is positive number||
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|`(is-neg? n)`|Returns true if n is negative number||
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|`(dec n)`|Return n decremented by 1||
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|`(inc n)`|Return n incremented by 1||
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|`(sleep time)`|Pauses execution for time interval of seconds||
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|`(get-env var)`|Return environment variable var||
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|`(second l)`|Returns second element of list||
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|`(third l)`|Returns third element of list||
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|`(fourth l)`|Returns fourth element of list||
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|`(fifth l)`|Returns fifth element of list||
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|`(nth i l)`|Return i-th elemenet of list. First element has index 1||
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|`( make-csv list)`|creates csv string from list of lists|(print (make-csv '(("r1c1" "r1c2") ("r2c1" "r2c2"))))
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|`(sprintf ..)`|||
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|`(xx ..)`|||
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```
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(define term-rst-esc "\x1B[0m")
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(define term-red-esc '"\x1B[31m")
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(define term-green-esc "\x1B[32m")
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(define term-yellow-esc "\x1B[33m")
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(define term-blue-esc "\x1B[34m")
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(define term-magenta-esc "\x1B[35m")
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(define term-cyan-esc "\x1B[36m")
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(define term-white-esc "\x1B[37m")
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(define term-bold-esc "\x1B[1m")
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(define term-underline-esc "\x1B[4m")
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(defun term-red (str) (sprintf (+ term-red-esc str term-rst-esc)))
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(defun term-green (str) (sprintf (+ term-green-esc str term-rst-esc)))
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(defun term-yellow (str) (sprintf (+ term-yellow-esc str term-rst-esc)))
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(defun term-blue (str) (sprintf (+ term-blue-esc str term-rst-esc)))
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(defun term-magenta (str) (sprintf (+ term-magenta-esc str term-rst-esc)))
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(defun term-cyan (str) (sprintf (+ term-cyan-esc str term-rst-esc)))
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(defun term-white (str) (sprintf (+ term-white-esc str term-rst-esc)))
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(defun term-bold (str) (sprintf (+ term-bold-esc str term-rst-esc)))
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(defun term-underline (str) (sprintf (+ term-underline-esc str term-rst-esc)))
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```
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