S-Lang Run-Time Library Reference: Version 1.4.0

John E. Davis, davis@space.mit.edu

1. Array Functions

• 1.1 _reshape
• 1.2 array_info
• 1.3 array_map
• 1.4 array_sort
• 1.5 init_char_array
• 1.6 length
• 1.7 reshape
• 1.8 transpose
• 1.9 where

2. Associative Array Functions

• 2.1 assoc_delete_key
• 2.2 assoc_get_keys
• 2.3 assoc_get_values
• 2.4 assoc_key_exists

3. Functions that Operate on Strings

• 3.1 Sprintf
• 3.2 create_delimited_string
• 3.3 extract_element
• 3.4 is_list_element
• 3.5 is_substr
• 3.6 make_printable_string
• 3.7 sprintf
• 3.8 sscanf
• 3.9 str_delete_chars
• 3.10 str_quote_string
• 3.11 str_replace
• 3.12 str_uncomment_string
• 3.13 strcat
• 3.14 strchop
• 3.15 strchopr
• 3.16 strcmp
• 3.17 strcompress
• 3.18 string_match
• 3.19 string_match_nth
• 3.20 strjoin
• 3.21 strlen
• 3.22 strlow
• 3.23 strncmp
• 3.24 strreplace
• 3.25 strsub
• 3.26 strtok
• 3.27 strtrans
• 3.28 strtrim
• 3.29 strtrim_beg
• 3.30 strtrim_end
• 3.31 strup
• 3.32 substr

4. Functions that Manipulate Structures

• 4.1 _push_struct_field_values
• 4.2 get_struct_field
• 4.3 get_struct_field_names
• 4.4 is_struct_type
• 4.5 set_struct_field
• 4.6 set_struct_fields

5. Informational Functions

• 5.1 _NARGS
• 5.2 __get_defined_symbols
• 5.3 __is_initialized
• 5.4 _apropos
• 5.5 _function_name
• 5.6 _slang_doc_dir
• 5.7 _slang_version
• 5.8 _slang_version_string
• 5.9 get_doc_string_from_file
• 5.10 is_defined

6. Mathematical Functions

• 6.1 Conj
• 6.2 Imag
• 6.3 Real
• 6.4 abs
• 6.5 acos
• 6.6 acosh
• 6.7 asin
• 6.8 asinh
• 6.9 atan
• 6.10 atanh
• 6.11 cos
• 6.12 cosh
• 6.13 exp
• 6.14 log
• 6.15 log10
• 6.16 mul2
• 6.17 polynom
• 6.18 set_float_format
• 6.19 sign
• 6.20 sin
• 6.21 sinh
• 6.22 sqr
• 6.23 sqrt
• 6.24 tan
• 6.25 tanh

7. Message and Error Functions

• 7.1 error
• 7.2 message
• 7.3 usage
• 7.4 verror
• 7.5 vmessage

8. Time and Date Functions

• 8.1 _time
• 8.2 ctime
• 8.3 gmtime
• 8.4 localtime
• 8.5 tic
• 8.6 time
• 8.7 times
• 8.8 toc

9. Data-Type Conversion Functions

• 9.1 _slang_guess_type
• 9.2 _typeof
• 9.3 atof
• 9.4 char
• 9.5 define_case
• 9.6 double
• 9.7 int
• 9.8 integer
• 9.9 isdigit
• 9.10 string
• 9.11 tolower
• 9.12 toupper
• 9.13 typecast
• 9.14 typeof

10. Stdio File I/O Functions

• 10.1 clearerr
• 10.2 fclose
• 10.3 fdopen
• 10.4 feof
• 10.5 ferror
• 10.6 fflush
• 10.7 fgets
• 10.8 fgetslines
• 10.9 fopen
• 10.10 fprintf
• 10.11 fputs
• 10.12 fread
• 10.13 fseek
• 10.14 ftell
• 10.15 fwrite
• 10.16 pclose
• 10.17 popen
• 10.18 printf

11. Low-level POSIX I/O functions

• 11.1 close
• 11.2 dup_fd
• 11.3 fileno
• 11.4 isatty
• 11.5 lseek
• 11.6 open
• 11.7 read
• 11.8 write

12. Directory Functions

• 12.1 chdir
• 12.2 chmod
• 12.3 chown
• 12.4 getcwd
• 12.5 listdir
• 12.6 lstat_file
• 12.7 mkdir
• 12.8 readlink
• 12.9 remove
• 12.10 rename
• 12.11 rmdir
• 12.12 stat_file
• 12.13 stat_is

13. Functions that parse pathnames

• 13.1 path_basename
• 13.2 path_concat
• 13.3 path_dirname
• 13.4 path_extname
• 13.5 path_is_absolute
• 13.6 path_sans_extname

14. System Call Functions

• 14.1 errno
• 14.2 errno_string
• 14.3 getegid
• 14.4 geteuid
• 14.5 getgid
• 14.6 getpid
• 14.7 getppid
• 14.8 getuid
• 14.9 kill
• 14.10 mkfifo
• 14.11 setgid
• 14.12 setpgid
• 14.13 setuid
• 14.14 sleep
• 14.15 system
• 14.16 umask
• 14.17 uname

15. Eval Functions

• 15.1 autoload
• 15.2 byte_compile_file
• 15.3 eval
• 15.4 evalfile

16. Module Functions

• 16.1 get_import_module_path
• 16.2 import
• 16.3 set_import_module_path

17. Debugging Functions

• 17.1 _clear_error
• 17.2 _debug_info
• 17.3 _slangtrace
• 17.4 _trace_function
• 17.5 _traceback

18. Stack Functions

• 18.1 __pop_args
• 18.2 __push_args
• 18.3 _pop_n
• 18.4 _print_stack
• 18.5 _stk_reverse
• 18.6 _stk_roll
• 18.7 _stkdepth
• 18.8 dup
• 18.9 exch
• 18.10 pop

19. Miscellaneous Functions

• 19.1 __get_reference
• 19.2 __uninitialize
• 19.3 _auto_declare
• 19.4 getenv
• 19.5 implements
• 19.6 putenv
• 19.7 use_namespace
• 19.8 current_namespace