rubyforge不是不搞这些了么，说是现在gems移到rubygems.org去了(好像是09年底的事？)，那么我现在怎么才能指定从rubygems.org上安装我要的gem呢？我这样写，没有找到
[code="ruby"]
gem install prawn-core --source http://rubygems.org
ERROR: While executing gem ... (Gem::GemNotFoundException)
Could not find prawn-core (> 0) in any repository
[/code]
但是我这样写又是可以的
[code="ruby"]
gem install prawn-core --source http://gems.github.com
Bulk updating Gem source index for: http://gems.github.com
[/code]
所以我觉得是后面网址的问题。[我之所以没有直接用后者，是怕它的版本(可能)没有官方公布的那个新]
但现在的问题是：
[code="ruby"]
gem query --remote --name-matches prawn --source http://rubygems.org
*** REMOTE GEMS ***
amberbit-prawn-fast-png (0.2.1, 0.1.3, 0.1.2, 0.1.1)
An extension of Prawn that improves the performance when embedding
PNG images containing an alpha channel
AndrewO-prawn_grid (0.4.1)
A simple way to build grid layouts for Prawn
corny-prawn-layout (0.1.1, 0.1.0)
An extension to Prawn that provides table support and other layout
functionality
fullcirclegroup-fullcirclegroup-prawn (0.2.99.2)
A fast and nimble PDF generator for Ruby
fullcirclegroup-prawn (0.2.99.3)
A fast and nimble PDF generator for Ruby
jerryvos-prawn-layout (0.2.0.4, 0.2.0.3, 0.2.0.2)
An extension to Prawn that provides table support and other layout
functionality
kavu-prawn-core (0.4.100, 0.4.99)
A fast and nimble PDF generator for Ruby
PaulOstazeski-prawn (0.4.99)
A fast and nimble PDF generator for Ruby
sant0sk1-prawn-fast-png (0.1.3)
An extension of Prawn that improves the performance when embedding
PNG images containing an alpha channel
satoko-prawn (0.2.99.6, 0.2.99.2)
A fast and nimble PDF generator for Ruby
sbfaulkner-sinatra-prawn (0.9.2.1, 0.9.2, 0.9.1)
Sinatra extension to add support for pdf rendering with Prawn
templates.
seven1m-prawn_template_handler (0.1.0)
Uber simple template handler for Prawn views in Rails
srdperu-prawn-format (1.1.3.3, 1.1.3.2, 1.1.3.1, 1.1.3.0, 1.1.2, 1.1.1, 0.1.2, 0.1.1.2, 0.1.1.1)
An extension to the Prawn PDF generation library that allows you to
use HTML-ish tags to do inline formatting.
sskirby-prawn-layout (0.1.1, 0.1.0)
An extension to Prawn that provides table support and other layout
functionality
sskirby-sskirby-prawn-layout (0.1.0)
An extension to Prawn that provides table support and other layout
functionality
[/code]
没有这个gem啊
或者说，现在又有更好的gem取代它了？如果这样的话，求推荐一枚……
还有一个就是，我下载之后，在本地安装，结果报这种错：
[code="ruby"]
D:\temp>gem install prawn-0.8.4.gem --l
ERROR: While executing gem ... (RuntimeError)
Error instaling prawn-0.8.4.gem:
prawn requires prawn-core >= 0.8.4, < 0.9
D:\temp>gem install prawn-core-0.8.4.gem --l
ERROR: Error installing gem prawn-core-0.8.4.gem[.gem]: buffer error
[/code]
也不知道什么问题，唉
