Version 1.0.2

New features:

• add shell builtin bind, it defines key bindings that executes a builtin, alias or command with job control
• add shell builtin edit-text, it launches the first available program among: $VISUAL $EDITOR sensible-editor editor nano emacs vi
• add shell special variables $0 $1 ... $9 and ${NNN} for accessing runtime arguments
• add executable schemesh-script for simplifying running scripts with runtime arguments
• add command line options --file FILE and --script FILE [ARG...] that can load files in Scheme or shell syntax, and can also load compiled Scheme libraries.
• add command line options -t TYPE and --type TYPE for setting the type of subsequent files in command line
• add functions (lineedit-cleanup-before-cmd) and (lineedit-cleanup-after-cmd) for coordinating line editing
  with key bindings that arbitrarily modify input lines or write to the terminal
• add function (lineedit-key-edit-input) for editing input lines with the preferred editor: uses shell builtin edit-text
• add functions (lineedit-key-sh-run) (lineedit-key-sh-run/i) for starting jobs from a key binding
• add functions (file-mkstemp->fd) and (values->status)
• add function (sh-alias) for defining shell aliases that can execute arbitrary code - not just run a builtin or command
• add function (sh-job-verbose?) and (sh-job-verbose?-set!) for getting/setting a job's verbose flag:
  REPL shows job status changes notifications only for verbose jobs
• add bytevector-related functions (bytevector0?) (bytevector-prefix?) (bytevector-suffix?)
• add or refactor string-related functions conforming to R7RS SRFI 13 String Libraries:
  (string-any) (string-count) (string-every) (string-fold) (string-fold-right) (string-for-each-index) (r7rs:string-for-each) (string-index) (string-index-right) (string-map) (string-map!) (string-null?) (string-prefix?) (string-suffix?) (string-unfold)

Improvements:

• for sanity, shell builtin command now cannot be shadowed by an alias
• flush current and console ports after each evaluation at REPL
• if some stopped job is present, display once the message "There are stopped jobs." instead of exiting immediately from shell builtin exit and upon EOF at REPL. See issue #65
• harden command line file evaluation, REPL and linectx against tty I/O errors
• improve Android Termux support in Makefile
• improve functions (sh-eval-file...), they now can also load compiled Scheme libraries
• on ELF systems, install wrappers for C functions pthread_mutex_...() and never suspend a thread as long as it owns some locked mutex
• rename library (schemesh shell paths) -> (scheme2k posix path) and change its license GPL v2+ -> LGPL v2+

Bug fixes:

• fix issue #62: update (sh-env-ref) and shell environment variable $PWD to always return the relevant job's current directory
• fix issues #67 #68 #69 #71 #72: several glitches in shell parser
• fix issue #74: infinite recursion in UTF-8b output ports when writing to the underlying binary port repeatedly fails
• fix issue #80: shell redirection >& had no effect
• fix issue #82: file descriptor leak caused hang when piping the output of a redirected command
• fix issue #83: (sh-run/bytevector) and friends caused scroll and prompt redraw if called from linectx key bindings,
  because they tried to show status changes of a silent job
• fix issue #84: source code was displayed without quoting/escaping in conditions raised by syntax errors
• fix (sh-home->~) not to shorten paths that merely share a prefix with user's home, as for example /home/user_foobar
• fix several deadlocks in thread-related functions: no longer keep track of exited threads id, status and name