rebased

8 files changed, 78 insertions, 43 deletions

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b74aeda..2cc1ffa 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -115,7 +115,7 @@ open an issue and we’ll discuss it.
 
 If you have never created a pull request before, welcome :tada:.
 You can learn how from
-[this great tutorial](https://egghead.io/series/how-to-contribute-to-an-open-source-project-on-github).
+[this great tutorial](https://app.egghead.io/courses/how-to-contribute-to-an-open-source-project-on-github).
 
 Don’t know where to start?
 You can start by looking through the list of
diff --git a/fpm/src/fpm/cmd/new.f90 b/fpm/src/fpm/cmd/new.f90
index a1e25da..d0cf60c 100644
--- a/fpm/src/fpm/cmd/new.f90
+++ b/fpm/src/fpm/cmd/new.f90
@@ -55,7 +55,7 @@ module fpm_cmd_new
 
 use fpm_command_line, only : fpm_new_settings
 use fpm_environment, only : run, OS_LINUX, OS_MACOS, OS_WINDOWS
-use fpm_filesystem, only : join_path, exists, basename, mkdir, is_dir
+use fpm_filesystem, only : join_path, exists, basename, mkdir, is_dir, to_fortran_name
 use fpm_filesystem, only : fileopen, fileclose, filewrite, warnwrite
 use fpm_strings, only : join
 use,intrinsic :: iso_fortran_env, only : stderr=>error_unit
@@ -71,7 +71,7 @@ integer,parameter            :: tfc = selected_char_kind('DEFAULT')
 character(len=:,kind=tfc),allocatable :: bname          ! baeename of NAME
 character(len=:,kind=tfc),allocatable :: tomlfile(:)
 character(len=:,kind=tfc),allocatable :: littlefile(:)
-
+  
     !> TOP DIRECTORY NAME PROCESSING
     !> see if requested new directory already exists and process appropriately
     if(exists(settings%name) .and. .not.settings%backfill )then
@@ -310,7 +310,7 @@ character(len=:,kind=tfc),allocatable :: littlefile(:)
         endif
         ! create placeholder module src/bname.f90
         littlefile=[character(len=80) ::          &
-        &'module '//bname,                        &
+        &'module '//to_fortran_name(bname),       &
         &'  implicit none',                       &
         &'  private',                             &
         &'',                                      &
@@ -319,7 +319,7 @@ character(len=:,kind=tfc),allocatable :: littlefile(:)
         &'  subroutine say_hello',                &
         &'    print *, "Hello, '//bname//'!"',    &
         &'  end subroutine say_hello',            &
-        &'end module '//bname]
+        &'end module '//to_fortran_name(bname)]
         ! create NAME/src/NAME.f90
         call warnwrite(join_path(settings%name, 'src', bname//'.f90'),&
          & littlefile)
@@ -460,7 +460,7 @@ character(len=:,kind=tfc),allocatable :: littlefile(:)
         if(exists(bname//'/src/'))then
             littlefile=[character(len=80) ::          &
             &'program main',                          &
-            &'  use '//bname//', only: say_hello',    &
+            &'  use '//to_fortran_name(bname)//', only: say_hello',    &
             &'  implicit none',                       &
             &'',                                      &
             &'  call say_hello()',                    &
diff --git a/fpm/src/fpm_command_line.f90 b/fpm/src/fpm_command_line.f90
index c3cd94d..cfa6cb9 100644
--- a/fpm/src/fpm_command_line.f90
+++ b/fpm/src/fpm_command_line.f90
@@ -28,7 +28,7 @@ use fpm_environment,  only : get_os_type, get_env, &
                              OS_CYGWIN, OS_SOLARIS, OS_FREEBSD
 use M_CLI2,           only : set_args, lget, sget, unnamed, remaining, specified
 use fpm_strings,      only : lower, split
-use fpm_filesystem,   only : basename, canon_path
+use fpm_filesystem,   only : basename, canon_path, to_fortran_name
 use,intrinsic :: iso_fortran_env, only : stdin=>input_unit, &
                                        & stdout=>output_unit, &
                                        & stderr=>error_unit
@@ -231,13 +231,10 @@ contains
             end select
             !*! canon_path is not converting ".", etc.
             name=canon_path(name)
-            if( .not.is_fortran_name(basename(name)) )then
+            if( .not.is_fortran_name(to_fortran_name(basename(name))) )then
                 write(stderr,'(g0)') [ character(len=72) :: &
-                & '<ERROR>the new directory basename must be an allowed ', &
-                & '       Fortran name. It must be composed of 1 to 63 ASCII', &
-                & '       characters and start with a letter and be composed', &
-                & '       entirely of alphanumeric characters [a-zA-Z0-9]', &
-                & '       and underscores.']
+                & '<ERROR> the fpm project name must be made of up to 63 ASCII letters,', &
+                & '        numbers, underscores, or hyphens, and start with a letter.']
                 stop 4
             endif
 
diff --git a/fpm/src/fpm_filesystem.f90 b/fpm/src/fpm_filesystem.f90
index 7f1cbf5..5811cd4 100644
--- a/fpm/src/fpm_filesystem.f90
+++ b/fpm/src/fpm_filesystem.f90
@@ -3,11 +3,11 @@ use,intrinsic :: iso_fortran_env, only : stdin=>input_unit, stdout=>output_unit,
     use fpm_environment, only: get_os_type, &
                                OS_UNKNOWN, OS_LINUX, OS_MACOS, OS_WINDOWS, &
                                OS_CYGWIN, OS_SOLARIS, OS_FREEBSD
-    use fpm_strings, only: f_string, string_t, split
+    use fpm_strings, only: f_string, replace, string_t, split
     implicit none
     private
     public :: basename, canon_path, dirname, is_dir, join_path, number_of_rows, read_lines, list_files, env_variable, &
-            mkdir, exists, get_temp_filename, windows_path, unix_path, getline, delete_file
+            mkdir, exists, get_temp_filename, windows_path, unix_path, getline, delete_file, to_fortran_name
     public :: fileopen, fileclose, filewrite, warnwrite
 
     integer, parameter :: LINE_BUFFER_LEN = 1000
@@ -147,8 +147,6 @@ function dirname(path) result (dir)
     character(*), intent(in) :: path
     character(:), allocatable :: dir
 
-    character(:), allocatable :: file_parts(:)
-
     dir = path(1:scan(path,'/\',back=.true.))
 
 end function dirname
@@ -486,7 +484,7 @@ subroutine fileopen(filename,lun,ier)
 character(len=*),intent(in)   :: filename
 integer,intent(out)           :: lun
 integer,intent(out),optional  :: ier
-integer                       :: i, ios
+integer                       :: ios
 character(len=256)            :: message
 
     message=' '
@@ -562,4 +560,14 @@ character(len=256)                    :: message
 
 end subroutine filewrite
 
+pure function to_fortran_name(string) result(res)
+    ! Returns string with special characters replaced with an underscore.
+    ! For now, only a hyphen is treated as a special character, but this can be
+    ! expanded to other characters if needed.
+    character(*), intent(in) :: string
+    character(len(string)) :: res
+    character, parameter :: SPECIAL_CHARACTERS(*) = ['-']
+    res = replace(string, SPECIAL_CHARACTERS, '_')
+end function to_fortran_name
+
 end module fpm_filesystem
diff --git a/fpm/src/fpm_source_parsing.f90 b/fpm/src/fpm_source_parsing.f90
index f81555d..33b8400 100644
--- a/fpm/src/fpm_source_parsing.f90
+++ b/fpm/src/fpm_source_parsing.f90
@@ -16,7 +16,7 @@
 !>
 module fpm_source_parsing
 use fpm_error, only: error_t, file_parse_error, fatal_error
-use fpm_strings, only: string_t, string_cat, split, lower, str_ends_with, fnv_1a
+use fpm_strings, only: string_t, string_cat, len_trim, split, lower, str_ends_with, fnv_1a
 use fpm_model, only: srcfile_t, &
                     FPM_UNIT_UNKNOWN, FPM_UNIT_PROGRAM, FPM_UNIT_MODULE, &
                     FPM_UNIT_SUBMODULE, FPM_UNIT_SUBPROGRAM, &
@@ -476,4 +476,4 @@ function split_n(string,delims,n,stat) result(substring)
 
 end function split_n
 
-end module fpm_source_parsing
\ No newline at end of file
+end module fpm_source_parsing
diff --git a/fpm/src/fpm_strings.f90 b/fpm/src/fpm_strings.f90
index 2430237..2b036d1 100644
--- a/fpm/src/fpm_strings.f90
+++ b/fpm/src/fpm_strings.f90
@@ -4,13 +4,17 @@ implicit none
 
 private
 public :: f_string, lower, split, str_ends_with, string_t
-public :: string_array_contains, string_cat, operator(.in.), fnv_1a
-public :: resize, str, join
+public :: string_array_contains, string_cat, len_trim, operator(.in.), fnv_1a
+public :: replace, resize, str, join
 
 type string_t
     character(len=:), allocatable :: s
 end type
 
+interface len_trim
+    module procedure :: string_len_trim
+end interface len_trim
+
 interface resize
   module procedure :: resize_string
 end interface
@@ -177,7 +181,7 @@ function string_cat(strings,delim) result(cat)
     character(*), intent(in), optional :: delim
     character(:), allocatable :: cat
 
-    integer :: i,n
+    integer :: i
     character(:), allocatable :: delim_str
 
     if (size(strings) < 1) then
@@ -200,6 +204,18 @@ function string_cat(strings,delim) result(cat)
 
 end function string_cat
 
+!> Determine total trimmed length of `string_t` array
+pure function string_len_trim(strings) result(n)
+    type(string_t), intent(in) :: strings(:)
+    integer :: i, n
+
+    n = 0
+    do i=1,size(strings)
+        n = n + len_trim(strings(i)%s)
+    end do
+
+end function string_len_trim
+
 subroutine split(input_line,array,delimiters,order,nulls)
     ! parse string on delimiter characters and store tokens into an allocatable array"
     ! Author: John S. Urban
@@ -318,6 +334,20 @@ subroutine split(input_line,array,delimiters,order,nulls)
     enddo
 end subroutine split
 
+pure function replace(string, charset, target_char) result(res)
+    ! Returns string with characters in charset replaced with target_char.
+    character(*), intent(in) :: string
+    character, intent(in) :: charset(:), target_char
+    character(len(string)) :: res
+    integer :: n
+    res = string
+    do n = 1, len(string)
+        if (any(string(n:n) == charset)) then
+            res(n:n) = target_char
+        end if
+    end do
+end function replace
+
 subroutine resize_string(list, n)
   !> Instance of the array to be resized
   type(string_t), allocatable, intent(inout) :: list(:)
diff --git a/fpm/test/fpm_test/main.f90 b/fpm/test/fpm_test/main.f90
index a7f4979..e1b9d1e 100644
--- a/fpm/test/fpm_test/main.f90
+++ b/fpm/test/fpm_test/main.f90
@@ -14,12 +14,12 @@ program fpm_testing
     implicit none
     integer :: stat, is
     character(len=:), allocatable :: suite_name, test_name
-    type(testsuite_t), allocatable :: testsuite(:)
+    type(testsuite_t), allocatable :: suite(:)
     character(len=*), parameter :: fmt = '("#", *(1x, a))'
 
     stat = 0
 
-    testsuite = [ &
+    suite = [ &
         & new_testsuite("fpm_toml", collect_toml), &
         & new_testsuite("fpm_manifest", collect_manifest), &
         & new_testsuite("fpm_source_parsing", collect_source_parsing), &
@@ -34,29 +34,29 @@ program fpm_testing
     call get_argument(2, test_name)
 
     if (allocated(suite_name)) then
-        is = select_suite(testsuite, suite_name)
-        if (is > 0 .and. is <= size(testsuite)) then
+        is = select_suite(suite, suite_name)
+        if (is > 0 .and. is <= size(suite)) then
             if (allocated(test_name)) then
-                write(error_unit, fmt) "Suite:", testsuite(is)%name
-                call run_selected(testsuite(is)%collect, test_name, error_unit, stat)
+                write(error_unit, fmt) "Suite:", suite(is)%name
+                call run_selected(suite(is)%collect, test_name, error_unit, stat)
                 if (stat < 0) then
                     error stop 1
                 end if
             else
-                write(error_unit, fmt) "Testing:", testsuite(is)%name
-                call run_testsuite(testsuite(is)%collect, error_unit, stat)
+                write(error_unit, fmt) "Testing:", suite(is)%name
+                call run_testsuite(suite(is)%collect, error_unit, stat)
             end if
         else
             write(error_unit, fmt) "Available testsuites"
-            do is = 1, size(testsuite)
-                write(error_unit, fmt) "-", testsuite(is)%name
+            do is = 1, size(suite)
+                write(error_unit, fmt) "-", suite(is)%name
             end do
             error stop 1
         end if
     else
-        do is = 1, size(testsuite)
-            write(error_unit, fmt) "Testing:", testsuite(is)%name
-            call run_testsuite(testsuite(is)%collect, error_unit, stat)
+        do is = 1, size(suite)
+            write(error_unit, fmt) "Testing:", suite(is)%name
+            call run_testsuite(suite(is)%collect, error_unit, stat)
         end do
     end if
 
diff --git a/fpm/test/new_test/new_test.f90 b/fpm/test/new_test/new_test.f90
index 22cf113..c284002 100644
--- a/fpm/test/new_test/new_test.f90
+++ b/fpm/test/new_test/new_test.f90
@@ -13,7 +13,7 @@ character(len=*),parameter     :: scr = 'fpm_scratch_'
 character(len=*),parameter     :: cmds(*) = [character(len=80) :: &
 ! run a variety of "fpm new" variations and verify expected files are generated
 ' new', &
-' new no-no', &
+' new name-with-hyphens', &
 ' new '//scr//'A', &
 ' new '//scr//'B --lib', &
 ' new '//scr//'C --app', &
@@ -64,7 +64,7 @@ logical                       :: IS_OS_WINDOWS
       if( is_dir(trim(directories(i))) ) then
          write(*,*)'ERROR:',trim( directories(i) ),' already exists'
          write(*,*)'        you must remove scratch directories before performing this test'
-         write(*,'(*(g0:,1x))')'directories:',(trim(directories(j)),j=1,size(directories)),'no-no'
+         write(*,'(*(g0:,1x))')'directories:',(trim(directories(j)),j=1,size(directories)),'name-with-hyphens'
          stop
       endif
    enddo
@@ -76,12 +76,12 @@ logical                       :: IS_OS_WINDOWS
       write(*,'(*(g0))')'CMD=',trim(cmds(i)),' EXITSTAT=',estat,' CMDSTAT=',cstat,' MESSAGE=',trim(message)
    enddo
 
-   if( is_dir('no-no') ) then
-       tally=[tally,.false.]
-       write(*,*)'ERROR: directory no-no/ exists'
-    else
+   if( is_dir('name-with-hyphens') ) then
        tally=[tally,.true.]
-    endif
+   else
+       write(*,*)'ERROR: directory name-with-hyphens/ exists'
+       tally=[tally,.false.]
+   endif
 
    ! assuming hidden files in .git and .gitignore are ignored for now
    TESTS: do i=1,size(directories)