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48 Fri, 12 Dec 2014 12:14:37 +0000 (UTC)
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50 To: Lele Gaifax <lele@metapensiero.it>, notmuch@notmuchmail.org
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51 Subject: Re: Address completion in Emacs
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52 In-Reply-To: <87d27p9t0f.fsf@nautilus.nautilus>
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53 References: <87d27p9t0f.fsf@nautilus.nautilus>
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54 From: David Edmondson <dme@dme.org>
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55 Date: Fri, 12 Dec 2014 12:14:37 +0000
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74 On Fri, Dec 12 2014, Lele Gaifax wrote:
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77 > Yesterday I tweaked my Emacs configuration to use "ido-completing-read"
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78 > to select the right address in the minibuffer, and noticed what seems a
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79 > glitch in the related code.
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81 > To accomplish the goal, I implemented my own selection function
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83 > (defun esk-notmuch-address-selection-function (prompt addresses first)
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84 > "Use `ido-completing-read' to select one of the addresses."
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85 > (ido-completing-read prompt (cons first addresses)
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86 > nil nil nil 'notmuch-address-history))
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88 > and then assigned it to `notmuch-address-selection-function':
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90 > (setq notmuch-address-selection-function 'esk-notmuch-address-selection=
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93 > As you can see, I had to `cons' the two arguments, because the caller of
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94 > that function does something similar to the following (where `orig' is
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95 > the text entered before TAB-completion):
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97 > (options (notmuch-address-options orig))
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98 > (num-options (length options))
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99 > (chosen (funcall notmuch-address-selection-function
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100 > (format "Address (%s matches): " num-options)
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101 > (cdr options) (car options)))
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103 > and the standard `notmuch-address-selection-function' is defined like:
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105 > (defun notmuch-address-selection-function (prompt collection initial-in=
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107 > "Call (`completing-read'
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108 > PROMPT COLLECTION nil nil INITIAL-INPUT 'notmuch-address-history)"
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110 > prompt collection nil nil initial-input 'notmuch-address-history))
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112 > where that `initial-input' is not what I initially thought, the text
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113 > entered by the user, but rather the first completion candidate.
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115 > Wouldn't it be more "correct" to pass the unchanged `options' list and
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116 > the "real" `orig' text as `initial-input' to the customizable function
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119 Would I then have to press TAB twice to get the first result?
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121 > I understand that it may be undesiderable to break existing
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122 > configurations by rectifying the arguments in that way, and in such case
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123 > could we change the `initial-input' argument name to better reflect the
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124 > fact that it actually contains one possible candidate instead?
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126 >From the perspective of `notmuch-address-selection-function', it _is_
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127 the `initial-input', as that is what is presented to the user.
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129 > Thanks in advance for any clarification,
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132 > nickname: Lele Gaifax | Quando vivr=C3=B2 di quello che ho pensato ieri
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133 > real: Emanuele Gaifas | comincer=C3=B2 ad aver paura di chi mi copia.
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134 > lele@metapensiero.it | -- Fortunato Depero, 1929.
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136 > _______________________________________________
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137 > notmuch mailing list
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138 > notmuch@notmuchmail.org
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139 > http://notmuchmail.org/mailman/listinfo/notmuch
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